diff --git a/ArchiSteamFarm/Core/ASF.cs b/ArchiSteamFarm/Core/ASF.cs
index 64ea44aeb..df984d7ca 100644
--- a/ArchiSteamFarm/Core/ASF.cs
+++ b/ArchiSteamFarm/Core/ASF.cs
@@ -377,7 +377,11 @@ namespace ArchiSteamFarm.Core {
 					return null;
 				}
 
+#if NETFRAMEWORK
 				if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux) || RuntimeInformation.IsOSPlatform(OSPlatform.OSX)) {
+#else
+				if (RuntimeInformation.IsOSPlatform(OSPlatform.FreeBSD) || RuntimeInformation.IsOSPlatform(OSPlatform.Linux) || RuntimeInformation.IsOSPlatform(OSPlatform.OSX)) {
+#endif
 					string executable = Path.Combine(SharedInfo.HomeDirectory, SharedInfo.AssemblyName);
 
 					if (File.Exists(executable)) {
diff --git a/ArchiSteamFarm/Core/OS.cs b/ArchiSteamFarm/Core/OS.cs
index a76f20ccb..04d008116 100644
--- a/ArchiSteamFarm/Core/OS.cs
+++ b/ArchiSteamFarm/Core/OS.cs
@@ -141,8 +141,12 @@ namespace ArchiSteamFarm.Core {
 				throw new ArgumentNullException(nameof(path));
 			}
 
+#if NETFRAMEWORK
 			if (!RuntimeInformation.IsOSPlatform(OSPlatform.Linux) && !RuntimeInformation.IsOSPlatform(OSPlatform.OSX)) {
-				return;
+#else
+			if (!RuntimeInformation.IsOSPlatform(OSPlatform.FreeBSD) && !RuntimeInformation.IsOSPlatform(OSPlatform.Linux) && !RuntimeInformation.IsOSPlatform(OSPlatform.OSX)) {
+#endif
+				throw new PlatformNotSupportedException();
 			}
 
 			if (!File.Exists(path) && !Directory.Exists(path)) {
@@ -201,7 +205,7 @@ namespace ArchiSteamFarm.Core {
 
 		private static void WindowsDisableQuickEditMode() {
 			if (!RuntimeInformation.IsOSPlatform(OSPlatform.Windows)) {
-				return;
+				throw new PlatformNotSupportedException();
 			}
 
 			IntPtr consoleHandle = NativeMethods.GetStdHandle(NativeMethods.StandardInputHandle);
@@ -221,7 +225,7 @@ namespace ArchiSteamFarm.Core {
 
 		private static void WindowsKeepSystemActive() {
 			if (!RuntimeInformation.IsOSPlatform(OSPlatform.Windows)) {
-				return;
+				throw new PlatformNotSupportedException();
 			}
 
 			// This function calls unmanaged API in order to tell Windows OS that it should not enter sleep state while the program is running
diff --git a/ArchiSteamFarm/Helpers/CrossProcessFileBasedSemaphore.cs b/ArchiSteamFarm/Helpers/CrossProcessFileBasedSemaphore.cs
index 50de67afb..01600eb9a 100644
--- a/ArchiSteamFarm/Helpers/CrossProcessFileBasedSemaphore.cs
+++ b/ArchiSteamFarm/Helpers/CrossProcessFileBasedSemaphore.cs
@@ -174,7 +174,11 @@ namespace ArchiSteamFarm.Helpers {
 						// Non-critical, user might have no rights to manage the resource
 						ASF.ArchiLogger.LogGenericDebuggingException(e);
 					}
-				} else {
+#if NETFRAMEWORK
+				} else if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux) || RuntimeInformation.IsOSPlatform(OSPlatform.OSX)) {
+#else
+				} else if (RuntimeInformation.IsOSPlatform(OSPlatform.FreeBSD) || RuntimeInformation.IsOSPlatform(OSPlatform.Linux) || RuntimeInformation.IsOSPlatform(OSPlatform.OSX)) {
+#endif
 					OS.UnixSetFileAccess(directoryPath!, OS.EUnixPermission.Combined777);
 				}
 			}
@@ -195,7 +199,11 @@ namespace ArchiSteamFarm.Helpers {
 						// Non-critical, user might have no rights to manage the resource
 						ASF.ArchiLogger.LogGenericDebuggingException(e);
 					}
-				} else {
+#if NETFRAMEWORK
+				} else if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux) || RuntimeInformation.IsOSPlatform(OSPlatform.OSX)) {
+#else
+				} else if (RuntimeInformation.IsOSPlatform(OSPlatform.FreeBSD) || RuntimeInformation.IsOSPlatform(OSPlatform.Linux) || RuntimeInformation.IsOSPlatform(OSPlatform.OSX)) {
+#endif
 					OS.UnixSetFileAccess(FilePath, OS.EUnixPermission.Combined777);
 				}
 			} catch (IOException) {