I’ve never owned an ender 3, so you claiming “you didn’t mount it with care” is pretty obvious owner blaming. I spent inordinate amounts of time on forums helping people with their shitty Enders and yes, they are shitty. When it takes the same amount of money in parts to fix the machine, then it’s a bad machine. Maker’s muse has a fantastic video on a lot of the problems with Enders that literally haven’t ever been fixed in all the years of production. https://youtu.be/k4Cc_3G4mpc

You can easily see that Enders aren’t good just by looking at posts of successful good builds. Take note of how many of them are modified and how many are stock. There’s vanishingly few stock Enders that are able to print decently out of the box.

A s maker’s muse said “it’s not a good 3d printer, and it’s certainly not a fast 3d printer”.