when launching, an error screen pops up saying:
"Mod Create requires Flywheel 1.16-0.1 or above, and bellow 1.16-0.2"
"currently, flywheel is not installed"

This issue has been marked as stale because it has been inactive for 3 weeks. It will be closed if it remains inactive for another 3 weeks.

This issue has been closed since it has been inactive for 3 weeks since it was marked as stale.

the error literally tells you what to do...

install flywheel alongside create: https://www.curseforge.com/minecraft/mc-mods/flywheel