Re: What about Office Suites?
It is often assumed that because you seect a UK/EEA region in a cloud provider that your data stays there.
Sadly this is not the case, and even if it were the physical location of data is less important than you may assume.
The Microsoft Terms if Service very clearly state that they can move your data internationally including to countries that do not meet EU requirements for data protection; the systems are in part administrated from outside of EEA and some if the core services within the M365 stack are only available outside of EEA (and your data moves there for processing).
Finally the extra-territoriality of some US legislation means that even if none of the above were true your data is still exposed to disclosure to US authorities.
I’m sorry to say therefore that your assumptions around residency and data protection are quite wrong - though you are correct that for some sectors at least the rules of Data Protection shall change again in January, but sadly these shall become MORE complex, not less.