In Quake, the player speed is less insane, more in line with human abilities, and it makes Quake feel more real. BTW the same is true for System Shock, where the player is not a sprinter champion at all (but can obtain a skateboard, but this is another kettle of fish).
Doom offered very nice gentle "bobbing" that added to the illusion of a real person's gait. Of course, only when you played single-player and switched off the "always run" mode. (Regarding this, I wish there were a popular FPS that would explore the notion of stamina, so that running mindlessly would be wasteful, but sprinting at critical moments would be an extra game mechanic. It worked reasonably well in Diablo, released in 1996.)
Further, the more you carry, the slower you can sprint, the faster stamina drains, and the faster your energy and hydration meters deplete. Since this is a game at least partially about scavenging, if you're carrying too much, you can only take a few steps before your stamina is depleted and you are unable to even walk unless you toss your immensely heavy backpack or gear on the ground and wait to recover.
None of this is to suggest that complex stamina mechanics are common in gaming, however...EFT is an exception to the mainstream.
If you load up too much stuff in your backpack, you go from normal to overweight to tankmode. Overweight penalties are reasonable and progressive from normal weight. Tank mode is not. Walking, at a snails pace, now costs stamina. You cannot recover stamina unless you are standing still. OR, unless you go prone and crawl forwards at roughly the same speed as walking.
Idk if you’ve ever put 25 lbs + in a backpack and prone crawled, but that’s very much the opposite experience In real life. Same with crouch walking not costing any more stamina in the game.
Diablo 2 (2000) added the sprinting mechanic with limited stamina, but it panned out as irrelevant for gameplay. The stamina supply easily ramps up to more than you ever deplete so you just always run. And players wanted it that way since no one wants to walk slower, and the monster speeds were later increased to be balanced against players always running.
This tread claims that David Brevik, creator of Diablo, regretted the stamina mechanic too https://steamcommunity.com/app/2694490/discussions/0/6052961...
But that’s the thing if you’re only there for mindless slaughter then it’s anti fun, but also very close to a non issue.
I have heard this is because there's a magic duration number for monetization.