If you are new, follow this to avoid crashes and overheating:
Even with the correct plugin, you may face overheating. Use these advanced tweaks: unity plugin for joiplay hot
Assuming you already have Joiplay installed, here is how to inject the "hot" Unity plugin correctly. If you are new, follow this to avoid
If your phone is rooted, use a tool like SmartPack Kernel Manager to force JoiPlay to use the Efficiency cores (little cores) instead of the Performance cores. The game will run slower, but your phone will stay cool. The game will run slower, but your phone will stay cool
The biggest mistake new users make is downloading the first Unity plugin they find on the official Patreon. The official release is stable for 2D games, but it is not optimized for "hot" (high-resource or adult) Unity games.
To get the "hot" performance, you need specific beta versions or community-patched builds.