You guys always wanted to play some snes in widescreen but you faced some flickering in bsnes hd on Switch? Fear no more! A fix has been pushed by DerKoun:
https://github.com/DerKoun/bsnes-hd/commit/036c2ed3f30aa5a5a42861e65108373f5a9b1449
This is how snes games looks with widescreen, I do...