Bug Project won't enter Play Mode and taking forever to open

Earlier today I decided to try to make the performance of my game better. I was learning how to use the Profiler to track down where I might have some performance issues. The most glaring issue I had was I had was in the Camera and rendering all the objects in my scene. I did some more research and then found out about batches and merging objects. I had about 14,000 batches at the time so I started to merge objects together using probuilders. Like I had buildings, and roads and such that could all be merged into one object. I got it down to about 1,500 batches after all the merges but my editor started running super slow. I decided to restart my laptop. When I went to reopen my project it took almost 30 minutes to open when before I messed with the batches it took about 1-2 minutes. Also now My editor freezes when I try to Enter Play mode, the I have to end task in task manager and spend 30 minutes just to open it again. I think the issues is something to do with some prefabs where I merged the children using ProBuilder because that is all that really changed in between the time it was working fine and now. I just don't know how to find where the issue is because I cant even profile properly because I cant even enter play mode. I really don't know what to do. Worst case scenario I can start a new project as I have all the assets and such backed up but it would take me hours and hours to port everything and hook up all my scripts to in game objects. Any advice on what to do?
p.s. this is my first time posting so not sure if im posting this is the right spot and all, also just lmk if there's any diagnostics I could possibly share that could help.
Thanks

 

More troubleshooting. I turned off the gameobjects associated with the prefabs I merged using probuilder. Also went to Project Settings > Editor > Enter Play Mode Options and checked that but left the two options beneath it unchecked(someone on a forum said this fixed their issue). The game entered playmode smoothly, but now froze on exiting play mode.

 

I was able to resolve the bug by unpacking all the prefabs I merged and deleting them from the folder. I have the version where the bug is still there backed up onto my hard drive. Should I submit the bug report through that unity project file?