That is completely untrue. It may be true for tech jobs which rely on hard skills, but for any sort of management jobs, graduate school admissions, banking jobs - virtually anything else - pedigree matters a lot.
At least in the UK, it is definitely not like that.
Most IT-related jobs do not mention a degree as requirement, and of those that do, many have an "or equivalent experience" clause.
This is how I remember it to be when I was looking for a job 2 years ago, but I also made a quick search for "devops", "senior developer" and similar positions in London through indeed.co.uk just now to confirm it.
yes, but that's it. be it the best UNI in europe or worst in most cases doesn't have any impact at all, in worst is a very minor disadvantage that can be easily overcomed by showing skillset.