Not sure about MS's ability to make significant money from forcing users to buy new PC's? First, probably and PC made in the last 4 or 5 years can be upgraded (unless minimally configured). Next, the big companies sell a lot of computers every year, how many more will this force to be bought?
Also, this is the list of MS's Investments,
Microsoft, MSFT, Investor Relations, Stock, Stock Split, Stock Price Look up, Investment Calculator, and I quickly scrolled the list, didn't seen any large PC make, i.e. Dell, HP, Lenovo, etc. I did see Best Buy, so yes, the sales of PC could go up there, but how much will that make in overall profit over a normal QTR? Unknown, but I'd not suspect a PC sale, no matter how many more to be more than a 'blip' vs. other items they sell.
Me personally, well, I am in the market for 2 PC's, one 8 years old the other 9. Is this because of W11? Nope, but both PC's are exhibiting problems. Mine is now a SLOW boot (with an SSD no less, 3 minutes and was 20 seconds or less). It happened after I tested a new monitor that used HDMI instead of Display Port connection to the video card. All the tricks I know, such as deleting and reinstalled the video driver (I did put the old monitor back the the problem started) and a lot of other things, including a backup and it doesn't change. Did some debug on the boot process and it tried to read a file off the SSD a few times, fails, waits again and eventually loads and boots... this always takes 3 or 4 tries followed by a timeout, and once read in, boots. SSD is NOT failing, according to the MFG's utility. Might be the PSU though or something else... Once up, works fine, and shuts down fast. Oh well, it is time for a new one.
Wife's PC, a few months ago it would not completely shutdown. Power light stays on. Before that, her USB port (3.0) slowed down to 2.0 speeds... suspect a chip failure, and I replaced it with a PCI card (3.0) and it still did 2.0 speed (that card works fine in my PC). Odd part, sometimes it did shutdown though. Event Viewer did not show an incomplete shutdown (and CHKDSK didn't run on boot) about 95% of the time either.
I was going to replace her PC before, but magically, somehow, about 3 weeks ago the problem went away? I had searched for this problem when it started and found no hits on the web. Sure it was a driver problem though. Unfortunately, I don't know what fixed it? Did get fixed with an MS Update probably, but no way to be sure since some times if did shutdown completely, so I don't really know the day it was fixed?
So I'm in the market for 2 PC's, W11 didn't force me to get them, but it was an incentive. I'm sure I'm not alone like this... and again, MS isn't going get a ton on money. Any PC sold with W10 will pay MS some $'s. MS's money engine is Office, not the OS.