The Belgian resident card also allows you to log into government services. You need a card reader for that(~20EUR). Same as with the banking, you can set up a mobile app that can be used for authentication without a card reader, after you complete the initial set up.
When I was living in Germany, my first residence permit(2014) was similar to the Belgian one. However, they stopped issuing those to foreigners in favour of a piece of paper which they stick into your passport. Consequently, I couldn't use any eID in Germany up until 2019 when I moved away. So if you want something done, you get an appointment with the local citizen office. Any paperwork is, well, done with paper. Most of the companies send you a ton of letters.
Interestingly, they stepped back from that two years ago, as almost all of the residence permits are now electrical. The only problem is that the electronic properties of the permits are not used anywhere.
In Denmark both of those are done using the same national 2FA app.
Not really weird in itself, but overall stupid, what is weird is how you get it (and how its use is becoming mandatory almost anywhere in governement sites).
The thingy is called SPID, and you get it through a small number of (private) firms (for a fee) or from Poste Italiane (the National Post Office) for free.
What they don't tell you (and that you learn only once you have one) is that there are three levels for it:
1) lowest level basically login+password
2) middle level, login+password+SMS or 2FA via app
3) high level that requires a smartcard (like the new electronic national ID card or the Codice Fiscale card) AND a smart card reader
BUT on some government sites (not all) you can use any among login+pin/password, SPID, CIE or CNS.
It is a mess.
Of course banks do not use any opf them and you have separate login+password+SMS or 2FA via specific bank app.
A proprietary scheme specific to that one bank.
> to your government services
Often: Using a signature. As in, pen on paper, stuck into an envelope or a fax machine (not a scanner and e-mail, oh no, has to be fax).
Government online services that do exist often have their own authentication scheme (each authority has a separate one), typically "we'll mail you an activation code" (snail mail of course) paired with SMS 2FA after the initial registration.
Government services have multitude of methods to log in, they include using a government issued ID with a card reader or using on of lesser auth methods like using the bank token.
I don't think you can use your government ID to log into your bank, even though it would make sense.
For other government-related login you usually just use your SSN, if someone gains access to your SSN you are screwed. Compared in Sweden I will happily yell out my SSN to a cashier :)
Here in Finland, each bank has their own. Lots of other entities, webshops -- of both big brick-and-mortar companies and pure online businesses -- and state / municipal agencies alike usually use the banks' services. They have umpteen bank logos to click on their check-out purchase or secure login pages, "Log in with Nordea", "Log in with S-Pankki", etc. For instance, when I want to access my data[0] in the health-care / prescriptions DB of the Social Insurance Institution[1] (i.e. the green "Sign in to e-Services" button on [2]) as a private citizen[3], I click the logo of my bank on the next page the button opens, and then use my bank's mobile app to prove I'm me.
Feels a bit inefficient compared to a common system, but then again there might be a benefit in decentralization: If there is a problem one system, the others still work. Also, if you are going to have a single centralised service, one would have thought the thoroughly registered and bureaucratized Nordic countries would have implemented this as a state service -- in Finland probably run by the Digital and Population Data Services Agency[4]; in Sweden by the Swedish Tax Agency[5][6]. AIUI, that's how it works in our Baltic neighbour Estonia.
[EDIT: Minor wording changes / clarification.]
___
[0] Say, to check if one of my prescriptions for diabetes medicines is running out and needs renewing.
[1] https://en.wikipedia.org/wiki/Kela_(institution)
[2] https://www.kela.fi/web/en
[3] They also happen to be my employer, but work is a whole separate VPN.
[4] https://dvv.fi/en/about-the-agency
[5] https://en.wikipedia.org/wiki/Swedish_Tax_Agency
[6] https://www.skatteverket.se/servicelankar/otherlanguages/ine...