How do you that with Apple hardware that requires an AppleID to operate?
Is your advise to avoid all Apple hardware?
Or buy backup hardware none of which will run MacOS / iOS, so you still couldn't access things like your Apple Developer account, or any shared documents?
Have no apple hardware. If you need apple hardware for work use a work email and account and never use it for anything else other than work. Always pay apple with a work credit card.
you can in the meantime, and for the future, try compartmentalizing services you use. the old saying of "all eggs in one basket" applies here as well.
VPS, hard drives, etc. are cheap and keep you more in control of your own data than you're with big tech.