my laptop got possessed or smth help pls

[feral steeple]

it started typing out japanese, keyboard didnt work, like 100 programs opened

i turned it off immediately and restarting it fixed it

but the thing is what happened to it

did i get infected or smth?

i suspect keyboard issue tho

i was playing mc at the time of this issue

i instantly got an epic games friend request after that if thats relevent