Where it’s a frozen screen on competitive this glitch literally happened to me three times and I got suspended for 1 day. How is this my fault?
The symptom you describe is actually more likely related to a connection issue based on past player experiences. Start with this troubleshooting if you have not already.
Unfortunately all disconnections and game crashes counts as leaving the match and will be penalized appropriately. The game server has no way to discern a legitimate disconnection or game crash from one that is forcefully caused by a dishonest player to bypass leaver penalties. You can learn about this policy here: