It's all in the title. Threads about logging users in EE with a facebook account seem to date from the last decade or so.
Is there any good solution for Facebook login with EE4 / EE5 in 2018 ?
[ YES! ] 2019 UPDATE
We used Social Sign In from reinos.nl and it's worth every penny. Bonus points for the developer who implemented several feature requests very quickly (MSM support and multiple return URLs).