This is just the problem, though. You can't hope to "push A7 to its limit" by using freebie shaders and models. If it were that easy, we wouldn't have a "3DGS is dying" thread in the first place.

Making games is hard, and if you want decent art/shaders/code/whatever, 99% of the time, it will cost you money.

That last 1% is reserved for people who A) Do everything themselves, or B) Build half of the game, then manage to attract free team members by accident.