Hey sorry, I have seen that on webGL version, but only when trying to load a massive level.. It's weird to see it in tutorial. I cant assign any more memory, its done automatically in this version of Unity afaik.. There's a windows version of the game on Steam and Itch.. I defo recommend that. its a lot better and more stable than webGL.
If you dont have Windows I might put up a Linux build at some point, but I dunno if/when