Hi doMalho, well we are on the same boat. Pixel 6 and not working. No MMS as well.
I must add that I called UPC Sunrise today (twice) because of an annoying issue with ring light on my Giga Cablebox, and the calls got like mute after several minutes.
UPC is so far behind, if I knew it I wouldn’t have sign up. Hopefully there will be some changes soon or I request a switch to Sunrise which will bring an improvement to our network (3 numbers). BTW, with Swisscom, Pixel 6 works as it should.