Computing is becoming both easier and more difficult
You are totally right.
Windows is known for getting slower and slower over months and years. The solution which always worked was format and re-install but in the last few years as you just said the computer is just as slow having done the updates.
I envy the people who just unlock their fondle slab and instantly start doing stuff. Windows should be like that. It never was but it's further from that than ever. No one who has first used a tablet will ever take to a PC. People who use PCs will migrate to a tablet once there is no reason to cling to a PC.
The computer industry is like a fast flowing river, you can hold your position or even paddle upstream but everyone including your parents are swept along with the technological flow. They are not using cloud services because they know more about computers than you do, it's because their new computer came like that or a button popped up and they pressed it.
Computing is becoming both easier and more difficult. It's easier for those who are clueless and harder for those who know what they are doing.