Funny you mention Windows and Office. Office is getting worse while moving to a subscription model, while Windows is getting worse by moving towards ads.
Yeah Excel 3.0 had much better cloud multi-user editing support. It really only went downhill after Excel 5.0 came out with this whole VBA nonsense in '93. Unnecessary bloat, really just showcasing the fact Microst doesn't know what it's users actually want.
Excel today is way better than the Excel I used in the 90s. I wouldn't trade it for a moment.
If you're using a tool like excel to work with data with more than 64,000 rows or analyze data, or if you're collaboratively editing a dataset in a non-version-controlled format... best of luck to you, I'll send flowers to your widow.