Is there a way to prevent recent applications from moving to the far left when switching with Command-Tab?
https://www.keyboardmaestro.com/documentation/5/applicationswitcher.html

I googled around and found the free Keyboard Maestro software. Using it you can customize your application switcher. You can hide specific applications from appearing in the switcher by going to Keyboard Maestro Preferences -> Excluded. In the switcher, pressing E will toggle hide/unhide apps.