It’s a matter of use I guess.
In the case of Tesla Waze web site, it does the job. Not much a faster browser would add, except if/when you want to swipe around to move the map. But I don’t need that often.
If you want to check TMC, not ideal.
If it’s about ready a news article it’s nice enough.
But indeed for browsing as if on you preferred tablet/Mac/..., it is not there yet.