I have a Pixel 9 Pro Fold and I like it indeed, but you have to see the disadvantages. The camera is much worse than on the Pixel 8 Pro, you can't even 2x zoom properly. The battery life is noticably worse (That is probably fixed with the 10 fold) and the display resolutions quite suck if you ask me. You see pixels on both, front and inner displays. The front display isn't perfectly centered, so typing is weird. It also really really heavy, don't underestimate that.
If you can deal with those things, the fold is an amazing experience. I couldn't, and I'm now using my 8 Pro until I can use the 10 Pro with GOS.
I'd love to try the 10 fold, and I maybe will, but as it has the same exact cameras, I'm just not so sure if it's worth it, especially as I don't think the colors are all that great this year. The only real thing that's better is the battery tbh.