Could maybe someone explain this issue i experienced?

I was on my PS5, Playing My Hero Ultra Rumble, i was trying some games against the recently added character Overhaul, After awhile, i was frozen in place for like a whole minute, i was finally able to move but then i found my HP was nearly gone, i ended up fighting a Bakugo, won & then i was frozen AGAIN, throughout that period, the Playstation button wasn't working, After awhile i got out because i was timed out of the server, stuck on the main screen loading, the playstation button still wasn't working, then, the PS5 somehow lost power. i had to do a database repair after that.

I was playing again after that nonsense.. Seems normal, none of my frames were freezing or dropping, the Playstation button was working.. i truthfully had no idea wtf was going on for 20 minutes.