I remember back in 2019, people complained the boss battles weren't good in Resident Evil 2 Remake or are "ammo dump" bosses. Both are bullshit. On a first time, you're not going to know what to do. But by your 3rd, 4th, or 5th playthrough, you'll know how to tackle G's forms properly, or take on Mr. X as Leon. In fact, the bosses actually get easier on 2nd Scenario, because you'll get Claire's or Leon's powerful weapons much earlier before facing G1! Leon B can get the magnum and it's first upgrade early, while Claire B can get the MQ11 with the suppressor! These bosses can still be challenging, but once you know how they click, and you've been saving your most powerful ammo, you can be dancing circles around all the G forms.
Obviously Hardcore is more difficult, and enemies get tankier and can kill you in two hits, but the game gives you a warning, so that's on the gamer by that point.