Hi,
I just returned to Facebook after a break of about 2 years.
This time as I remember I didn't violate any of Facebook rules.
About a week ago I just logged in to my business manager and I'm getting this message in all of my ad accounts, and the business manager itself:

If you gonna make new accounts prepare for a long journey with a solid technical setup needed. Normally, if you are not flagged/banned before you can open up several accounts per device ofcourse. I mean families often have more people on one device entering multiple accounts.
Not sure why you used all kind of tools to make a new account tho, if you have nothing to hide.
What did you do to connect with them? And what did you ask? Since accounts get shut down after a while not being used/active and it's quite common!
@stickupkid, I shot you a PM as I would love to discuss your expertise in Facebook Accounts. Thanks!
Did you appeal the bans? Try appealong every account banned, if you got ALL your accounts banned maybe there is a footprint causing the bans, try to make a new setup, i don't recommend farming, maybe get the accounts from people by renting.
cheers!
Farming does not work in 2020. Facebook is way too sophisticated and is actively hunting down on duplicate accounts. Just imagine, by now everybody has a FB account. You either gotta be super young, like 13 to join or very old, maybe 80?? Otherwise if you're using your same information, Facebook will know it's a duplicate account which is against their terms of service and will block you.
You have the highest chance with renting a real aged account from a friend or family member. Creating your own is risky and you'll only waste your precious time and resources.
Make sure the people you're renting / buying from are willing to submit their ID to verify the account in case you get locked out. It is a normal procedure on Facebook's end to request ID once you start running ads.