Given that you have a degree, would you consider going to the US for a year or two of work? While the Bay Area isn't for everyone, in my experience the environment is very driven by competence as opposed to tenure. For me, returning to Europe after working there also opened a lot of opportunities.

I also saw you writing that European companies are very driven by specific technologies. I do not think this is true. Sometimes companies will write "5 years of React" but what they are actually looking for is an experienced frontend developer.

What you should show is your ability to solve problems and learn independently. A company that does not believe a skilled frontend developer can learn another framework quickly (or don't want to give you the time to do so) is probably not a place you want to work.