Take the following with a grain of salt, it depends on your specific setup, environment and preference, but might help you:

Regarding system backups, and depending whether you need to run fedora, check out nixos, which takes a declarative file and builds your system based on that. Declarative immutable system, no moving parts, no breakage. If your system breaks, revert to a prior version and keep using what you’ve had before before retrying. Your backup is a git repo or whatever is keeping your handful of config files. Has been an absolute game changer for me, and the community and ecosystem around it is far beyond the point of quirky esoteric immutable distro.

VSCode has a powerful feature that I’ve yet to see in another editor/IDE - remote development, and it works really, really well. Spin up a VM however you like (I’d recommend checking out Vagrant), and depending on how much you need to do in windows either use the windows box as a remote run target (just running your built artifact in windows), or as a remote development box (running everything in windows and using your Linux VSCode as a “Frontend” for everything else happening in windows). Both methods can be made to work seamlessly in vsc.

Excel - again depending on your usage, you can try wine, you can use a VM, dual boot, M365 in browser, or a remote VM.

You probably just should let an AI generate that.