Yeah, the "community troubleshooting" on MacOS for anything beyond moderately complex is kind of funny, until you're the person trying to get help. Most of the time it involves five people stabbing in the dark with solutions that seem to solve the problem for 20% of the people involved, so its marked as the solution, even though it probably didn't actually solve anything, and those 20% just got lucky because the "solution" required a restart and that's what "fixed it".

I swear, every problem I've Googled, then subsequently ended up on SO or a github issues thread, someone has suggested "raise the open file count limit"; its like the the default "try this and then come back" answer.