yep happens to me, this is basically the only issue i currently have with the client and it's a consistent freeze. everything else runs fine for me. i use open mic but my friends hear me if i speak while it's frozen, I've often said "my client froze" after a game cause my Discord and postgame freeze together.
I have heard this from many players, we know discord also uses a CEF (or chromium), we are seeing if our upgrade to CEF 90 will help fix this issue.