Seems like there are a lot of issues with the desert eagle line of guns with jamming due to crap springs and mags.
Not sure where you are hearing this, is it from Desert Eagle owners and shooters? Or is just something you heard??
I've had two .357s and a .44Mag Desert Eagle, got the .44 in 1990. If they aren't fed right, or HELD right, you can make them jam. Otherwise, they run pretty good.
I don't know if recent production guns are having issues, but my original ones (now old) only had problems if I did something wrong for them.
They are NOT like most other semi autos. First off, they NEED to use ONLY jacketed bullets. NO CAST (the maker says so!) and I wouldn't run plated.
Full power loads (or even hotter) are what it wants. Anything less, and it can choke. The gun must be held so it has something to recoil against, AND the magazine must be allowed to "float" (meaning no pressure on the mag base plate) otherwise, you will have feeding issues.
It is NOT an omnivore, it needs a special diet (the ammo it likes). Use the right ammo, and the right grip and they are more than "halfway reliable".
Recoil is MUCH less punishing than a S&W 29 or a Ruger SuperBlackhawk. (I also have those) Mostly because the Desert Eagle is much heavier, but also the shape of the grip helps.
For me, full house .44 Mag out of a Desert Eagle feels like hot .45ACP from a lightweight duty gun (like a Sig). Blast is fearsome, but the recoil isn't.
I had an LAR Grizzly in .44 Mag. Was not happy with that one, Mags only held 6, and it liked to jam. I traded it for the same gun in .45 Win Mag, and its a whole different beast, runs well and smoothly, and holds another round.
Desert Eagle holds 8 in the mag. 8+1 .44Mag in an accurate pistol, which runs (in my experience) pretty well. The only real drawback is the overall weight and the size of the grip, which is simply too big for some people to manage well.
Its NOT the combat gun that movies and games make it out to be. NOR was it ever meant to be.