If you 3D-print PLA only, I don’t think you need a dryer. But if you print just about anything else - PETG, ABS, ASA, Nylon, TPU, polycarbonate and so on...
If you print only PLA filament, I don’t think you need any of this “nonsense”. Otherwise, if you print just about everything else including PETG, ABS, ASA, Nylon, TPU, polycarbonate...
I use this mount for my Voron 2.4. This mount fits many common webcams - specifically, those webcams that have a horizontal tube-like hole in the back.