When to expect Android 13 for Samsung Flip 4 5g

I hope Tmobile monitors this site. Been with them now since Z Flip 4 came out, update timing unacceptable. Was with Verizon got security updates monthly, on time. Since coming to T Mobile $1,000 phone got first update mid Dec for Nov update, now Android 13 release mid Nov and all other carriers have released it. Tmobile you listening? Unacceptable for a new generation phone and phone protection. Match or better your competitors, it is not still in development, you have had it for testing for quite a while, and you have left my phone with bugs and no monthly security updates.