I dealt with this too. The problem started out very small, almost ignoreable, but it got increasingly worse to the point that I contacted Tech support and asked for service. Because of the insane supply chain delays, my parts were delayed for at least 30 days, so Dell offered me a replacement with a refurb model. I'm not sorry I did, although I had reservations about trading mine in for something that wasn't brand new. The replacement unit has no issues whatsoever, and was in pristine condition, so I'm just gonna say, if they offer you a refurb, take the refurb, b/c it's been fully checked and tested. The malfunctioning laptop got so bad, that even in BIOS mode, I had had a hard time wiping the SDD to return it, because the touchpad was cutting out and ghost-tapping. This proves that the touch pad problems are hard-ware based, not driver-based. The fingerprint sensor also had some very serious problems as well, and after receiving the refurb, i can now say, the speakers were also not as loud.
Try not to beat up on Dell Tech Support too badly - This is an entirely new model, and production issues happen. Considering they force you to take the warranty support, make good use of it instead. They seem to be very interested in resolving the problems, but they will keep things fair. Dell really does make excellent laptops, but they're mass-producing extremely complicated machines, and things do go wrong. I respect them for making their laptops upgradable and self-repairable to some degree, and this model is a pretty clever design. You're basically getting an XPS-grade system for a much lower price. These problems are all intermittent, and hard to spot during quality-control.