I just tried out GZDoom to see how it compares. I think the rendering is nice, and far more performant than Doomsday on my M1 mac.
I do miss the dynamic lights and particle effects and nicer UI from Doomsday though (e.g. GZDoom won't start until you move your WAD files to a specific directory or edit a .ini file; Doomsday launches with an optional quick tutorial through the UI, then allows you to use a filechooser and point to a directory, after which the games corresponding to WADs show up in a nice visual selector).
It's nice to know there is a backup if support falls off for Doomsday in the future though (my sister and I have been using it to play co-op multiplayer for > 15yrs :)
I do miss the dynamic lights and particle effects and nicer UI from Doomsday though (e.g. GZDoom won't start until you move your WAD files to a specific directory or edit a .ini file; Doomsday launches with an optional quick tutorial through the UI, then allows you to use a filechooser and point to a directory, after which the games corresponding to WADs show up in a nice visual selector).
It's nice to know there is a backup if support falls off for Doomsday in the future though (my sister and I have been using it to play co-op multiplayer for > 15yrs :)