The approach I took is organize my contacts into three categories The people that I talk to on a daily basis, people that I occasionally talk to, and people who I rarely ever talk to. For the first group (less than 10 for me), mostly close friends and families, I just bullied them to use an alternative platform like Signal until they caved in. For the second group, I recommend Signal to them but also left them with my phone number so they can text me if needed. For the third group I did nothing. Then I proceeded to delete FB Messenger off all my devices. I still log in to the web version maybe once per month to check if anyone from the third group needs to reach me or if there's any group events going on. I did not fully get off FB but I ended up reducing 99% of my usage and 100% of the garbage in app and location tracking. To me this is good enough