If you go to the right company, they'll adjust to whatever you enjoy and are good at. We hired a couple "full stack" engineers and now one's a frontend and the other is backend. They'll occasionally work on the other end, but we keep them where they prefer to be as much as possible.

I'm probably the closest to a full stack we have, and I spend maybe 10% of my time on FE.

Why did you not like full stack work, I used to work in full stack roles years ago but that was before all the front end framework boom. Recently I've mostly been working as a backend engineer and now that I got laid off I'm looking for new roles but I find most roles are either full stack or expect you to have some knowledge of front end work like react or typescript etc. I'm debating if I should try to go for these roles just to have the experience on my resume and make it more future proof or stick to backend