There are many successful game genres which are functionally PC-only, because you cannot reasonably play them with a gamepad. See Paradox grand strategy games, for example. Those "potential buyers" never existed.

I play some paradox games on xbox with no problem, they are included with gamepass now

I’m not touching CK3 on Xbox until I get the royal court DLC.

I think a better genre GP could have considered are classic RTS’s. No way AoE is ever playable without a mouse.

CK3/Stellaris proved you could do grand strategy on console.

Halo Wars 1/2 proved you could do RTS on console.

Cities Skylines/Prison Architect proved you could do Sim games on console.

FFXIV proved you could do hotkey MMOs on console.

While you certainly can't forklift existing games like aoe2/sc2 onto a controller, I'm pretty much out of the business of assuming consoles are unsuitable for genres these days

Stellaris was ported to console and works fairly well! I still would rather play it with a keyboard and mouse, of course :)

Best to start small with your first few games regardless. porting is always harder than the industry leads on to suggest and to be frank, your first games will suck a lot. Porting can come after making something people want to play.

But all of that is tangential to why I wouldn't recommend Godot for a first game not unless you are already a competent C++ programmer and are ready to dig into the engine for problem. But I always like when I can chime in on how frustrating the porting process is.

Some big ones I care about are still PC only.

Like iRacing.