My desktop was purchased in Jan. 2017 and can't be upgraded to W11, and I'm not interested in a hack to make it work.
It's a Dell 8910, Intel i7-6700, Passmark CPU score of about 8100, 2T HD, 250 Samsung SSD, 16 GB RAM, decent graphics card and a 27" 4k monitor. Has worked well, never any issues. Set up for games at that time, but interest faded.
My Roger's connection is 1.5 GB, but my network is CAT5e and is maxed out at 1 GB. $66.66 / month with HST BTW. So no real limitations re download bandwidth.
My needs are pretty minimal. Internet, email, relatively simple Excel spreadsheets. I'm still happy with the system performance and speed.
My relatively new low end laptop runs W11 and I'm OK with it. It's basically a read only device for internet and email.
So.................. desktop system is 8 years old and I'll probably replace the box sometime in the next 6 months. I'll be keeping the monitor, very happy with it. Truth be told is that if W10 was not sunsetting I'd probably just keep it for another couple of years.
My SIL got a new high end Intel system about 12 - 14 months ago, i7-13700KF, 32 GB RAM, 2T SSD, liguid cooled, Passmark CPU score of about 46,500. RTX 4070, High end gaming system. Very fast. Don't need this much horsepower, but nice to have I suppose and you do have to keep up with the Jones............. So, we'll see.
My 99 year old MIL has an all in one PC that was running W10 and upgraded itself to W11, She's OK with W11. Her 97 year old sister has a new all in one PC running W11 and she happy with that too. Both ladies use their computers for Zoom church meetings, internet, email and variuos card games. About $850 each and perfectly good units for the casual user.