I’m using a OnePlus 7 Pro running LineageOS 20. When I’m using anything other than Mint/T-Mobile for data, RCS on Google messages stops working on the Mint line. When I’m using the RW/Boost line for data, RCS switches over there, I switch back, RCS moves to Mint. Now I’m testing an eSIM profile for use in Canada for data roaming, as Canada roaming hasn’t worked for me on RW/Dish despite being included in my plan and I’m most likely dropping the line when the Boost Infinite trial period runs out, and RCS is just plain dead as I’ve set the eSIM profile to be the data source while I run my tests, and there is no phone number as it is data only. In case you haven’t seen this thread on the topic, I know the phone doesn’t support eSIM and have MacGyvered a way around the problem, hence testing to be sure it all works before I actually visit Canada. So far, some things work, some don’t. Details on that will be in the referenced thread shortly.