i’m a violist/violinist by training, not a cellist.
but yeah, i don’t think muscle memory translates too well given the different hand position and string spacing. (in a way the tenor guitar is easier on the wrist than the viola…)
i just find the intervallic expectations easier to manage. i play a lot of counter-melodies / basslines on the baritone and its just much easier to get around on than a bass guitar. (given that you’re used to “thinking in 5ths”)
for the tenor i find its actually easier to manage chord shapes with a fourth on top (CGDG) than to attempt mandolin fingerings on the bigger fretboard.
but they are just different instruments and do different stuff.