Aaron, if you use the Mac App Store version, run it with Rosetta.
Otherwise, use the special version available at
https://www.sweethome3d.com/downloads/S ... -2.3.2.dmg
which runs with an older version of JOGL.
As this version can't be notarized, you'll have to launch it the first time by clicking on Sweet Home 3D icon while maintaining control key pressed and choosing Open item.

Camerone, try this special version too.