Simply no... SBS 3D videos play normally on any software player I've tried, they simply consist of two both frames side-by-side ... any mplayer/VLC/SMplayer plays them fine - apparently with no "driver" the projector does the decoding/alternating of the frames.
None of those players bother to have 3D menus or 3D subtitle support. - which is still working for nice video playback.
Here we have a perfectly fine SBS menu, subtitles in 3D , but instead of displaying both frames inside the picture, like those players do .. it seems we somehow crop the output to one single frame.
You would think this is true, but I have had TAB files and to a lesser extent SBS files that will play, but not properly on any of the three 3DTV's I own including one projector even though I could play the file on my PC and they appear to be "normal". Could be anectodal, but I don't know if your statement is 100% correct.
Regardless, SBS/TAB is only half resolution. I'm not goign to get into all the reasons for that, but the info is out there if you want it and didn't know this already.
MVC is the only way to consume this media in 3D without losing any quality. The half-res stuff may be "good enough" for many use cases or preferences, but it's not the real deal.
ISO support is FAR less critical to me as I rip all my media for playing in Plex primarily. I only use Kodi-based players for 3D-MVC. The Vero4K+ is the only open-source player that will play virtually any format up to the last couple years. I don't think it handles DolbyVision, but Atmos, 4K, 3D-MVC etc.....no problem. If you use any streaming services like NetFlix, Prime etc it doesn't handle those without hacking so it won't replace my Roku or Shields fully at this point. Being able to run this on a Pi4 would be a step forward since it can handle HD audio, 4K etc.