Uhm no.

The Facebook-Login is everywhere and does not correlate with the future acquisitions of facebook. It's just a simple sign-in solution, many websites accept.

I think it's been there for a while?

If you don't use Facebook you can block it with Ublock Origin

Facebook logins are as common as chewing gum on the floor

Fix is simple, just block all the facebook and meta domains on your router. Keeps it from spying on your activities on all the websites that have sold out to them, as well.

I'm seeing that in more than facebook. It's normal for corporations to do this to gaming community.

Pretty sure at least 2016

Downside with Google and Facebook incorporated everywhere, is they can track you and see what you like depending on the scripts involved. And NoScript is good at that too. I also block all facebook sites on my phone too.

Yep, and Google too. Blacklist all the bastards.

Ofc it's up to GOG whether they allow it on their site or not as an option, which they have done.

They really shouldn't be encouraging the use of that site in any capacity. It's one extra privacy risk we don't need.

If you're not blocking trackers via something like Privacy Badger, you have much worse things to worry about than a login button.

Better use Ublock Origin and block all Third party, third party script and third party frame, i also recomend to block all social media and Google, i just have to allow Google and Gstatic when i have recaptcha to log in but i try to avoid any website that still using this. When you visit a website for the first time just allow only what is really needed to make it work.

I run with Opera GX as my browser, as it's a good balance of features, security and privacy options. I block all third party cookies, run with DNS over HTTPS and in terms of extensions, I use Adguard and Privacy Badger. Privacy Badger is the best if you don't want to block ads but it's also a good supplement if you do block them. I've used many ad blockers over the years and in my experience, Adguard is definitely my favorite. It has loads of features, has support for countless ad and tracking lists (as well as a couple security lists that help you avoid having to use Google's anti-malware API at the browser level) and it also has some nice convenience features such as being able to look up a site's reputation both on their database and on Web of Trust's database without having to use their extension (which is nice, since WoT's extension was caught harvesting data).

On top of that, I use several other privacy options both at the OS level and the network level. Overall, 2020 and 2021 really woke me up to just how much control I can take back over my privacy. There aren't any perfect solutions but the naysayers and pessimists would have people think that it's futile. It's not. Data harvesting corpos can still get a bit of an idea about who you are and what ads they should send your way but there are ways to drastically limit what information they can obtain.

For anyone who might be interested in the topic of internet privacy and security, but don't know where to start, I HIGHLY recommend Techlore (also on Youtube). They're far from the only privacy-related channel but they're definitely the most beginner-friendly and they also aren't pessimistic about it, they encourage people to create a threat model so they can balance privacy with the features they need.

mmm, yeah, I'm using Ublock Origin and Umatrix. Useful things those

Firefox can also block all third party cookies and isolate all cookies to avoid cross site to track you, i personally use a fork of firefox to avoid all the tweaking and check at each update and only use Ublock Origin, cookie autodelete and privacy redirect to avoid youtube and watch the videos from invidious proxy. I used tu have Umatrix but i saw a few weeks ago that it's outdated now and using Ublock origin in medium or hard mode with a tweaked firefox is enough.