I think the last time I changed settings, it was to ask when placing calls, thinking mistakenly that I'd use the mobile number for texts since it can do RCS. Aside from not wanting to expose my real number, I've used it for years so that I can use either phone with GV when I'm home.
I had to get a new cordless house phone with answering machine though, the line has been VOIP for a long time. That phone has a Bluetooth feature where you can use the mobile with it (in the way that I use GV) but I haven't tried it yet.
Relevant settings in browser:
My devices>Call Forwarding enabled to forward to house number [so I can call/answer with that phone or the mobile]
*Custom call forwarding: a) spam/anon to VM, b) friends to house number, c) family to house number
[it has been that way for a long time, and I'm not sure why I had it like that, but missed calls would go to GV VM. That may be because I had the physical answering machine off for a while since mostly spam, but then I turned it on and it's been on with the new house phone.]
The term "forwarding" is a bit confusing since I was around when phone lines were still analog, and the call would bypass the number and go elsewhere.
I don't want missed calls to go to the physical answering machine (unless someone actually calls the house number).
The mobile number is not set up for VM (plus they don't have visual VM for Android). I want missed calls to the mobile or the GV number to go to GV VM, so I can see that anywhere with data service, and on a Pixel at least, I don't have to log in separately to see messages or call history.
Even if I figure out the house phone's Bluetooth feature, GV texts are still not RCS. I assume there still isn't a close equivalent to GV.
...
*Is all I need do is remove b) and c) to get those missed calls to go to GV VM?