I love running TD on my Mac. Especially since so much content production happily terminates in ProRes output, having native hardware accelerated playback for ProRes makes it an easy win. Of course this reasoning falls apart if you need any of the fun stuff that nVidia gets you (ie: Maxine, broadcast toolset).
I have a client that uses an M1 Ultra Studio for VJ-ing shows and, despite being an older model than your prospective machine, he says it’s his ideal rig.