My sway config has `output eDP-1 scale 1.25`. I started out with 1.5 liked it but eventually felt text still a little too large. At 1.25 I am finding I need to bump font size up with some sites. I've not seen tearing or any other graphical artifacts in any applications.
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.