Hell, nobody even has a smartcard reader, and as far as I know none of the eID cards have contactless capability that phones (who all have NFC readers nowadays) can use.
I wish smartcards took off and computers included readers as standard. This would not only solve strong authentication but also payments (just insert your bank card and do EMV-style payments with comparable levels of security).
The first time I used it for anything, apart from signing pgp keys, was to collect 200€ rent assistance and it worked flawlessly in 4 minutes.
I'm not even sure how i can use my signature outside the AWFUL experience that is the government esig portal.
I dont think they are accessible for non-resident entities either - i.e. i can only get lithuanian signatures through the lithuanian portal.
This likely explains why they arent used b2b as you would need a separate contract process for foreign and domestic.