On dolz.io marketplace I am constantly being signed out of my wallet, almost at every refresh of the page/clicking on any button. Is there any way on how to stop this? It is very annoying.

yea, I'm experiencing the same.

This is sometimes fixed if I spam F5, but like you said, It's annyoing.

Two months later I am just trying to live with that. Is there really no solution to it? Other users do not experience it?

Security apps / Ad Blockers / Popup blockers are great tools, till they get in the way.
Then they become a Nuisance all of their own, which was why we started to use them to begin with:
to stop the Annoyances. Now they become the Annoyance.

Thank you Wyldanimal for ideas. But I do not use any Ad blockers. I tried to find any settings for the wallet to enable more permanent login, but didn't have any luck so far. It is still signing me out very often. After every click on the dolz.io page I have around 50 percent chance to be sign out of the wallet. I really do not know what is the cause. But I do not use almost any add-ons and I am using the latest Chrome browser.