Is United Healthcare really as bad as people say on the internet?

My job just switched to them from Cigna starting this new year unfortunately. Now my plan has stayed exactly the same and on paper its a GOOD plan. I pay $120/month for the PPO plan, $600 deductible, 80% coinsurance, $40-$50 in copays. They CLAIM to cover alot of things. BUT ive been hearing everyone on the media that this insurance loves to deny claims no matter how medically necessary they are, which is kindof illegal so I dont understand how they even get away with that but if all these stories are true it’s pretty bad. And a good premium and deductible doesn’t mean sh*t if they deny claims that often.

So while I really like my job and going anywhere else is gonna cost me a major pay cut i’m wondering if it would be worth it to get a new job with a pay cut for “better” insurance? “better” as in with a company that isnt famous for denying claims the way United does.

Are they really that bad? Would it be worth taking a $3/hour paycut for better insurance?