There is always enought ammo to kill the bosses IN THE BOSS ARENA, It is a design choice from RE since the early days, and was kept in all Remakes so far. If there isn't enought ammo, than the Boss is not mandatory at that point.

Red Dead 2, If you don't Bath, your stealth sucks because enemies can smell you.

Look at the size of a Switch game and then look at the size of a PS4 game. You got your awnser there.

Star Wars and COD is enought to take almost half your HD, both are filled with useless files that the company refuses to delete after an update, you can check their storage comsumption, it should be somewhere between 300-450gb.

The other games are mostly fine (I believe Cyberpunk is pretty big, and so is MH World), but you still have a lot of games installed, so, what exatcly are the complains?

Two questions:

1- what games have you purchased?

2- what is the HD size of your PS4?

Because I have a 1tb PS4 and I have over 20 games installed right now, the storage space was never a problem.

What I do is: keep the games I like to constantly play (like a online multiplayer one or a party game) and Just uninstall a game after beating/platinum or doing everything I wanted to.

It is the same on the Nintendo Switch as well. Games theses days are just bigger, and after the instalation, the loads are pretty Quick.

Toy Story 2 and Bugs Life for PSONe are amazing classics.