Can confirm OP's experience-- MTGA build 202.3.13.26904, Epic launcher, Windows 10. Windows Event Viewer reports event 1002, application hang, type unknown.
I also attached a WER event report, if that would help. (The Epic launcher isn't leaving any traces of the bad behavior that I can see in events, unfortunately.)
Can confirm OP's experience-- MTGA build 202.3.13.26904, Epic launcher, Windows 10. Windows Event Viewer reports event 1002, application hang, type unknown.
I also attached a WER event report, if that would help. (The Epic launcher isn't leaving any traces of the bad behavior that I can see in events, unfortunately.)