The biggest roadblock will be whether the bootloader will allow another OS. You should be able to search xda forums for your device as a start.

Linux can be installed on ARM, no problem.

If you believe everyone is human equally:

If you had the same genetics and upbringing as that “bad hombre” , you’d make the same choices.

Your question is likely too general for a good answer.

What do you need specifically? What makes the solutions you’ve tried ‘meh’? What would make an office suite ‘better’?

There used to be a wine-based project specifically for Microsoft office. It was called crossover office. Not sure if it’s still maintained.

Good luck!