Here is a question for GameDevs (of which I am not). How do you target?
Although in theory, you could make something that runs on a big screen and also on a phone, it seems extremely impractical. I presume you have a sweet spot. Is that the big screen?
It’s hard to leg your way into multiplayer, right? Nobody goes to a nightclub with no one in it. So that is a big factor in game design.
Phone games are usually casual stuff, right? Like Candy Crush, presumably. The “pause” while you are in the dentist waiting room. I have not heard of much 3D traction on small screens. (But what do I know?)
Outside of the U.S., the tradeoffs are different. For many folk, the phone is their only computer. They squeeze usage out of that wee device that we would never try. It’s kinda amazing. In some places (not all) Internet has exorbitant usage fees, by their standards.
I think the strongest advantage of making a PWA is the ability to build an App-like module that runs across many platforms with one code base. It’s harder for Apple, Google, Microsoft to monetize it. The same factor will dampen any marketing air cover you might hope for.
I am doing an App (not a game) that would primarily be used by a group on people in the same physical location. They might be on any platform imaginable. So this is the only way to go.