[vetinari]

I'm not in US, but in EU. Here, T-Mobile or Orange do not have a problem with incoming traffic, and they know that people have security cameras, doorbells, or NAS devices in their homes that they want access from outside.

So even if you expose your Home Assistant web to the wide web, no ISP is going to have a problem with that and won't interpret it as hosting services. What they really want is that you don't run a bandwidth intensive services on a consumer connection, which is going to be overbooked somewhere in their infra, causing service degradation to other users.

And for example Orange does provide PCP for their CGNAT.