If you stop updates on Windows 10, you don't get the security updates that happen almost if not always daily, plus the the program itself is modified almost monthly (that way they don't have the expense to come out with a entirely new program - Windows 11, they just constantly upgrade the existing one).
I had to upgrade my 6+ year old computer to a new one because it wouldn't run Windows 10 without problems.
I liked Windows 7 also but they stopped supporting it with security updates and other improvements.
It's a sign of the times that your older computers won't handle the new programs so you have to get a new computer.
That also happened with my iPad and iPhone. Had to get new ones.