So as I wrote in other comments, I selected this filter list and cookies warning disappeared. After a couple of days I noticed a simple troubleshooting, login (in feddit for example) can’t be permanent and requires login any time. I guess there’s no way out.

Already said goodbye to I don’t care about cookies… And so far I applied what OP suggested :)

Ok now you’ve convinced me. Meanwhile I’ve noticed no troubles adopting the UBO cookies filter on Firefox mobile, time to do the same on my laptop. Thanks

Thanks for the info. Like many, I use “I don’t care about cookies”, still sometimes I had to disable on some sites otherwise those became impossible to login or simply access. Is this ublock setting similar?