I’ve been using integrated graphics card since I’ve gotten my computer. I didn’t knew how unsmooth we’re graphics 'till I got this Radeon card from 2013. Tho it’s quite old, it really made entire desktop experience appear a lot smoother. Also card installation process was literally plug-n-play, I didn’t had to install any driver. I’ve just plugged it to motherboard and it have worked.
That’s because you’re lucky and aren’t running into the ring0 GPU reset issues: https://gitlab.freedesktop.org/drm/amd/-/issues/2220