My personal experience here. Running Jaws 2020, for what that's worth.
Windows 11 is perfectly usable, and most things are fairly intuitive. There'll be a learning curve, but it's not a steep one.
Now, I personally downgraded to windows 10 just yesterday, and I'll tell you three reasons why.
1. When using alt-tab, Jaws was always saying something like "task switching, desktop" followed by gibberish. I have absolutely no idea what the hell that was, and I did try monkeying with it. It's a very small thing, but it grew to annoy me.
2. The start menu is different, and I don't want to have to monkey with third-party alternatives to make it behave more like Windows 10 when Windows 10 was working just fine for me on my old laptop. Specifically, typing into the search box in the start menu made my system lag for some reason, and it wouldn't always even bring up the things I wanted. The windows 10 start menu is perfectly good with me.
3. This one is more personal preference, but still. I use Internet Explorer for a few sites, although I know it's not safe. I generally use it for 3-4 sites in particular, and have Chrome running otherwise for everything else I'm doing. Windows 11 strips IE out entirely; you can't use it unless there's some sort of hackish workaround, and again, not gonna bother. It'll be gone in six months but for now I'm comfy with it. I am just not a fan of Microsoft Edge for whatever reason, and Windows 11 tries really, really hard to get you to use Edge.
None of these things were absolute dealbreakers on their own, and if I'd been told I couldn't revert to windows 10 for whatever reason, I'm sure I would have found a way to cope. But since I did have the option to downgrade, that's exactly what I did. The new laptop, by the way, is zippy, responsive, and has a battery like a champ, and I have it doing about 90% of what I had my other laptop doing (have yet to download some games and NVDA yet, for instance).
But yeah...if you're going to stick with Jaws 2018, you may want to revert to Windows 10 just on principle, since those two will work better together than will Jaws 2018 and Windows 11.
Check out my Manamon text walkthrough at the following link:
https://www.dropbox.com/s/z8ls3rc3f4mkb … n.txt?dl=1