Bazzite + Refind on Legion Go: random freezing on Refind boot selection screen

I installed Refind in Bazzite desktop mode. I'm dual booting Windows on the same drive. 50% of the time it works fine. But 50% of the time Refind just hangs on the boot selection screen, is unresponsive, and the fan spins up to full speed. I have to hold down the power button to shut down the Go and then try again.

This is very strange, has anybody else encountered this?