I’ve played through the whole game last year and the performance is okay.
There are occasional dips and the framerate is rather low in cloudy levels, but that didn’t take away the fun for me.
I have a 1st Gen Framework and don't recommend it.
Battery life in standby is TERRIBLE, we are talking 40% overnight (after optimizations) and very rarely the notebook wakes up randomly.
The build-quality is better than cheaper laptops, but definitely worse than my old Thinkpad. Although the keyboard is better than many consumer laptops, it feels a lot mushier than my Thinkpad's. Several keys have lost their cover already and the display hinges are wobbly & feel cheap. I also got small spot with burn-in on the display. After 2 years the Framework looks worse than my 6-year-old X1 Yoga.
Linux support is okay, most things work out of the box. However, it's far from perfect and absolutely not a First Class experience. For example, there is currently no way to get the most recent BIOS via Linux and apparently we are months away from a solution. In Fedora 39 Silverblue I experience very rare freezes (according to Arch Wiki this is due to Intel and not a Framework-exclusive problem, I still want to mention it).
My next laptop will be a new or used Thinkpad again.