I would recommend trying another browser too. I had an issue (Is the Bubble editor crashing when choosing icons for anyone else...?) that was related to a chromium version that Arc was using – never understood why, but during the next Arc update it was fixed, so it def seemed like a browser issue.
The weird thing was that support tried to replicate even on Arc but couldn’t reproduce.
And I’m on a MBP M1 Max 64GB on RAM. I also feel like Chrome in general eats at your RAM