My M1 is suffering from a bug where there is runaway SSD writes and I have to restart it every few days. I've learned so many coping techniques. I'd never call this the best hardware I've ever owned, that was a 2011 MBA.
Celery does a ton of things that channels doesn't currently do. Celery has a lot of workflow concepts built in (Chains, Chords, etc). Celery also has prioritization, and a fairly robust ecosystem that channels may take a while to deliver.