Macbook shutdown itself, audio loop

Macbook Pro 2020 13" i5

I was running FM20, Spotify playing in the background and Firefox was running as well. Mac suddenly crashed (cursor doesn't move) and audio starts looping – went on for a good 5-10 seconds? Then it shuts down by itself, and the fan ramped up to full speed for a second after it shut down.

cursor stuck - audio loop - display turns to black - fan full speed - fan stops - Mac restarts.

Upon restart, Firefox has logged me out of all my accounts, but not Spotify or Steam client. Was Firefox the reason? I copied the crash report too if anyone could have a look – I hope it's not overheating?

Cheers