Have you enabled fractional scaling on your DIY? How well do applications work? Firefox, for example, goes haywire and its popup menus start flickering as soon as fractional scaling is enabled.
I use fusuma for gestures. Had to change BAT0 to BAT1 in waybar config to get the battery to show up. Had to install Intel's WiFi drivers, probably because the Sway edition is on 5.10 kernel. I've upped to 5.14 without any noticeable issues.
The last time I enabled fractional scaling in Sway, I quit using Sway and Wayland in frustration and moved back to i3. Firefox, and many other applications, just don't behave appropriately when scaling (integer or fractional) is enabled. There are also bugs open on the Sway github issue tracker for this so it's not like this issue is restricted to just me.
So it's best to have a laptop which needs either 100% scaling or 200% scaling, nothing in between.