Considering this is a post from NextDNS themselves, showing off a NEW and awesome feature.... It doesn't seem abandoned? You don't seem to have even looked at the description lol
Congratulations to them, I suppose. They've temporarily returned after stealing money from me. Their service stopped working after renewing my annual subscription and when I went to try and find support, I got silence.
If you're one of the lucky few who's never had issues with NextDNS, I'm happy for you.