diff --git a/src/libs/utils/benchmarker.cpp b/src/libs/utils/benchmarker.cpp
index 06a8132fb09..dfbdf1242e8 100644
--- a/src/libs/utils/benchmarker.cpp
+++ b/src/libs/utils/benchmarker.cpp
@@ -2,6 +2,7 @@
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0+ OR GPL-3.0 WITH Qt-GPL-exception-1.0
 
 #include "benchmarker.h"
+#include "environment.h"
 
 #include <QCoreApplication>
 #include <QLoggingCategory>
@@ -48,7 +49,7 @@ void Benchmarker::report(const QString &testsuite,
 void Benchmarker::report(const QLoggingCategory &cat, const QString &testsuite, const QString &testcase,
                          qint64 ms, const QString &tags)
 {
-    static const QByteArray quitAfter = qgetenv("QTC_QUIT_AFTER_BENCHMARK");
+    static const QByteArray quitAfter = qtcEnvironmentVariable("QTC_QUIT_AFTER_BENCHMARK").toLatin1();
     QString t = "unit=ms";
     if (!tags.isEmpty())
         t += "," + tags;
diff --git a/src/libs/utils/commandline.cpp b/src/libs/utils/commandline.cpp
index d82448d0e4c..725fbeea24b 100644
--- a/src/libs/utils/commandline.cpp
+++ b/src/libs/utils/commandline.cpp
@@ -644,13 +644,13 @@ bool ProcessArgs::prepareCommand(const CommandLine &cmdLine, QString *outCmd, Pr
         *outCmd = executable.toString();
     } else {
         if (executable.osType() == OsTypeWindows) {
-            *outCmd = QString::fromLatin1(qgetenv("COMSPEC"));
+            *outCmd = qtcEnvironmentVariable("COMSPEC");
             *outArgs = ProcessArgs::createWindowsArgs(QLatin1String("/v:off /s /c \"")
                     + quoteArg(executable.toUserOutput()) + ' ' + arguments + '"');
         } else {
             if (err != ProcessArgs::FoundMeta)
                 return false;
-            *outCmd = qEnvironmentVariable("SHELL", "/bin/sh");
+            *outCmd = qtcEnvironmentVariable("SHELL", "/bin/sh");
             *outArgs = ProcessArgs::createUnixArgs({"-c", quoteArg(executable.toString()) + ' ' + arguments});
         }
     }
diff --git a/src/libs/utils/filesystemmodel.cpp b/src/libs/utils/filesystemmodel.cpp
index 2765d2bfbac..645d979fc9c 100644
--- a/src/libs/utils/filesystemmodel.cpp
+++ b/src/libs/utils/filesystemmodel.cpp
@@ -3,6 +3,7 @@
 
 #include "filesystemmodel.h"
 
+#include "environment.h"
 #include "hostosinfo.h"
 #include "qtcassert.h"
 
@@ -432,7 +433,8 @@ ExtendedInformation FileInfoGatherer::getInfo(const QFileInfo &fileInfo) const
     info.displayType = m_iconProvider->type(fileInfo);
     if (useFileSystemWatcher()) {
         // ### Not ready to listen all modifications by default
-        static const bool watchFiles = qEnvironmentVariableIsSet("QT_FILESYSTEMMODEL_WATCH_FILES");
+        static const bool watchFiles = qtcEnvironmentVariableIsSet(
+            "QT_FILESYSTEMMODEL_WATCH_FILES");
         if (watchFiles) {
             if (!fileInfo.exists() && !fileInfo.isSymLink()) {
                 const_cast<FileInfoGatherer *>(this)->
diff --git a/src/libs/utils/qtcprocess.cpp b/src/libs/utils/qtcprocess.cpp
index bda2cf195ce..d2fc6c3b327 100644
--- a/src/libs/utils/qtcprocess.cpp
+++ b/src/libs/utils/qtcprocess.cpp
@@ -4,6 +4,7 @@
 #include "qtcprocess.h"
 
 #include "algorithm.h"
+#include "environment.h"
 #include "guard.h"
 #include "hostosinfo.h"
 #include "launcherinterface.h"
@@ -50,7 +51,7 @@ class MeasureAndRun
 public:
     MeasureAndRun(const char *functionName)
         : m_functionName(functionName)
-        , m_measureProcess(qEnvironmentVariableIsSet("QTC_MEASURE_PROCESS"))
+        , m_measureProcess(qtcEnvironmentVariableIsSet("QTC_MEASURE_PROCESS"))
     {}
     template <typename Function, typename... Args>
     std::invoke_result_t<Function, Args...> measureAndRun(Function &&function, Args&&... args)
@@ -507,7 +508,7 @@ private:
 
 static ProcessImpl defaultProcessImpl()
 {
-    if (qEnvironmentVariableIsSet("QTC_USE_QPROCESS"))
+    if (qtcEnvironmentVariableIsSet("QTC_USE_QPROCESS"))
         return ProcessImpl::QProcess;
     return ProcessImpl::ProcessLauncher;
 }
diff --git a/src/libs/utils/terminalprocess.cpp b/src/libs/utils/terminalprocess.cpp
index e5b1cdcaac7..c140a1e6e63 100644
--- a/src/libs/utils/terminalprocess.cpp
+++ b/src/libs/utils/terminalprocess.cpp
@@ -182,15 +182,15 @@ void TerminalImpl::start()
             QStringList envStrings = env;
             // add PATH if necessary (for DLL loading)
             if (envStrings.filter(QRegularExpression("^PATH=.*", QRegularExpression::CaseInsensitiveOption)).isEmpty()) {
-                QByteArray path = qgetenv("PATH");
+                const QString path = qtcEnvironmentVariable("PATH");
                 if (!path.isEmpty())
-                    envStrings.prepend(QString::fromLatin1("PATH=%1").arg(QString::fromLocal8Bit(path)));
+                    envStrings.prepend(QString::fromLatin1("PATH=%1").arg(path));
             }
             // add systemroot if needed
             if (envStrings.filter(QRegularExpression("^SystemRoot=.*", QRegularExpression::CaseInsensitiveOption)).isEmpty()) {
-                QByteArray systemRoot = qgetenv("SystemRoot");
+                const QString systemRoot = qtcEnvironmentVariable("SystemRoot");
                 if (!systemRoot.isEmpty())
-                    envStrings.prepend(QString::fromLatin1("SystemRoot=%1").arg(QString::fromLocal8Bit(systemRoot)));
+                    envStrings.prepend(QString::fromLatin1("SystemRoot=%1").arg(systemRoot));
             }
             return envStrings;
         }();
@@ -324,7 +324,7 @@ void TerminalImpl::start()
                                      " is currently not supported."));
             return;
         }
-        pcmd = qEnvironmentVariable("SHELL", "/bin/sh");
+        pcmd = qtcEnvironmentVariable("SHELL", "/bin/sh");
         pargs = ProcessArgs::createUnixArgs(
                         {"-c", (ProcessArgs::quoteArg(m_setup.m_commandLine.executable().toString())
                          + ' ' + m_setup.m_commandLine.arguments())});