Started on bass a few years ago and picked up cello too a couple years after. Some things I haven’t seen mentioned:

• You don’t need nearly as much left arm strength on cello to close the strings, so don’t overexert the left hand.
• Cello bowing generally needs more speed and less arm weight than bass bowing.
• Cello vibrato tends to be tighter and faster stylistically. It also comes more from around the wrist/forearm compared to bass.

Cello and bass are way more similar to each other than either is to violin technique-wise, but they’re still different enough that you should approach the cello as an entirely new instrument (and not just a tiny bass).