newly ported numbers dont receive text messages

Syaoran this is 100% the issue. I resolved it on one phone  by erasing the esim and having T-Mobile issue a new one to that phone. The second phone I requested a new esim but the request wasn't understood by the support rep I was working with and they spent 2 hours troubleshooting why the phone can't make calls but that was never the issue. I ran out of time trying to deal with it. So that is the resolution, as of right now I have RCS disabled but will get a new esim to completely resolve the issue soon.

Did you bring your devices from AT&T or get new ones from T-Mobile?  What texting app are you using?  Have you checked the APN Settings for texts and data within the texting app and in your device settings? 

https://www.t-mobile.com/support/devices/not-sold-by-t-mobile/byod-t-mobile-data-and-apn-settings#:~:text=In%20Settings%2C%20look%20under%20Wireless%20%26%20Networks%20or,update%20the%20following%20settings%20for%20the%20Data%20APN.

We got new devices ( both pixel 7 phones). We are using the standard messaging app.

at times when transferring your number from one carrier to another there can be...delays..usually from the other carrier because youre no longer the priority. i have heard of it taking up to a couple weeks to fully transfer the number over..