How normally positioning elements and using transform: translate() differ?

Question

Is there a difference in performance or behavior?

Answer 1

Main thing is compatability: transforms are part of CSS3 and often require a vendor prefix to work closer to expected ( https://www.w3schools.com/cssref/css3_pr_transform.asp ) while "normal positioning" is part of CSS2 ( https://www.w3schools.com/cssref/pr_class_position.asp ).

Not sure if there were other "performance or behavior" aspects you were interested in.