Hi Peter, thanks for your time. I have applied for a GC through marriage. I am currently on a H1B via my employer. I have already received my EAD but waiting o

Hi Peter, thanks for your time. I have applied for a GC through marriage. I am currently on a H1B via my employer. I have already received my EAD but waiting on the GC interview which might take a while given the current state of affairs. 1) Can I change employers using an EAD? 2) My EAD expires in a year. Are EAD renewals generally painless?