my macbook 2012 running at 60 to 80 degrees mac os sonoma

is this normal for the 3rd gen i5? sometimes its warm to touch while i am doing basic things such as watching youtube videos, i was monitoring the activity monitor while it was connected to internet was cpu was being more active while only watching videos and while turned off from the internet the cpu was sitting idle, is this a normal twmperature of this or should i revert back to catalina? thanks

submitted by /u/More_Association4882
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