game maker html5 is an easy export, though with my vampire survivors clone i had to redo my loot system (ds_list) to use strings of the object names instead of the real equivalents because they didnt trigger properly
Yeah... Those quirks could be not transparent what is working and what is don't when export. We were using Godot and played with 3D and external physics engine... It was exported to the HTML5 just fine... except that external physics engine. It could be predicted but oh well...
i actually had a lot of trouble, it was crashing at start at first, after hours i finally figured out it was because i hadnt deleted "tilesets" that didnt have their associated sprites anymore (which only crashed on html5)