That’s worse than my story, sorry they had to go through that.
I married my wife while I was living in her country, Georgia. Then I came back to the U.S. and started the process for her to come. It took 17 months. I didn’t need a lawyer for it. We did later try to get a visitor visa for my mother-in-law and it got denied. I always say that if I had it to do over again, it would have probably been cheaper and quicker to fly them both to Mexico and then cross the border.
I can’t confirm if all features are working, but possibly. My case is that I have LineageOS on my phone and my son has an Amazon tablet that I’ve used Fire Toolbox on to install Google Playstore and services. I’m able to approve/deny apps for him to install (I get the notification on Family Link on my phone), but some things aren’t working because I’m having trouble with Play services on the tablet.