Marketing dept. too. They're the primary culprits in all the tracking scripts.
You're describing the web developers again. (Or, if UX has the power to demand this from software engineering, then the problem is not the UX designers.)
Recently had to put so many huge blurs that there was screen tearing like effect whenver you srcolled a table. AND No i was not allowed to use prebake-blurs because they wouldnt resize "responsively"
But sure, the current state of brokenness is a result of a combination of overambitious designs and poor programming. When I worked as a web developer I was often tasked with making elements behave in some bespoke way that was contrary to the default browser behavior. This is not only surprising to the user, but makes the implementation error prone.
One example is making a form autosubmit or jump to a different field once a text field has reached a certain length, or dividing a pin/validation code entry fields into multiple text fields, one for each character. This is stupidity at the UX level which causes bugs downstream because the default operation implemented by the browser isn't designed to be idiotic. Then you have to go out of your way to make it stupid enough for the design spec, and some sizeable subset of webpages that do this will predictably end up with bugs related to copying and pasting or autofilling.
Marketing and managers should be restricted as well, because managers set the priorities.
I recently had to clean up a mess and after days asking what’s in use and what’s not, turns out nothing is really needed, and 80 tracking pixels were added “because that’s how we do it”.
Less useless shit popping up (with ad block so I mean just the cookies, store location etc harassments) Store selector didn't request new pages every time I do anything; resulting in all the popups again. (just download our spyware and all these popups will go away!) Somehow my page loads are snappier than local stores despite being across the planet.
Not saying it's a good site. It's almost the same as Home Depot. Just slightly better. I mean there's an AI button for searching for a product so you can do agentic shopping with a superintelligence on your side.