To get the moschops to harvest resources on mobile:
1-set to aggressive
4-give it a minute he won’t exactly harvest everything in his path right away from what I’ve seen. Instead he kind of just walks around and breaks trees and bushes
(You may need to play with targeting settings if it doesn’t work)
Moschops are one of the best ways to collect berries early to mid-game, well at least I think so. When you tame them you should upgrade weight, speed, and stamina, if you are using them for harvesting. Easy to tame since they are passive. Some require things like rare flowers. If you want to tame one that needs rare flowers or something like that, then check back next time you play because their food changes over time. And one final thing, on mobile you can't ride them. I played on console then I got mobile, tamed one, then realized it was pretty much useless for me. But still one of the best early tames and I would recommend taming one if you are just starting out. Thanks for reading!