Re:The death watch for the X Window System has probably started
by sq_ on Sunday July 07, 2019 @02:08PM
(#20376615)
swaywm supports screenshots and screen capture for sure [0]. I haven't personally done anything with screen capture on sway, but I can definitely confirm that grim works for screenshots.
[0] https://github.com/swaywm/sway/wiki#taking-screenshots