I can’t even use Paramount+ at home. Have network wide ad and tracking filters on (simple NextDNS presets, nothing crazy), and while others work, Paramount+ doesn’t. Makes me wonder what they are doing to get blocked. Kind of wish neither were getting WB.

Most likely as simple as "they use the same servers for content and ads/tracking so you can't block just one part as easily".

I've had the same issue and go so far as to remove the streaming stuff from my Pihole to make sure it wasn't a DNS filtering issue. Paramount+ app still is sketchy as hell sometimes. Usually won't work on my AppleTV, but works on phones and stuff.