Yes, that's what I'm talking about, although brusselstimes seems to report it weirdly (sounds like they want to extend itsme). https://www.standaard.be/cnt/dmf20220627_97617861 -> They want to replace itsme with something build by the government.
> The Belgian government already has an implementation: https://www.csam.be/en/egov-profile.html
You're confusing a couple of things here. CSAM isn't an identity provider. It's like a gateway/umbrella to multiple identity providers like eID and itsme. You can have eID authentication without CSAM and vice-versa.
It doesn't make sense to claim itsme doesn't support linux. It's only a phone app, you dont need desktop software. I can login to proximus.be using itsme on linux.