During the pendemic, I was stuck working from home, and for a couple of periods my home internet connection was quite unreliable (it's DOCSIS, and nearby construction kept damaging the cable; eventually the cable company actually strung the cable across the road, _attached it to a tree_, and ran it back, to bypass the construction site). So I regularly had to tether on my (then LTE) phone. And it was _fine_; it was actually surprisingly okay.