I have one of those and it works perfectly from Linux using standard software. You can also go over the subscription, you just pay (still comparable to buying ink cartridges though, perhaps even a little cheaper if you’re printing photos). It also worked for 2 weeks with no internet connection, although it did complain about that lack of an internet connection after a week.

It has also proved to me that HP are conning everyone with non InstantInk cartridges. After 3 years we are still on the same cartridges, which I am sure it would have claimed were empty if it were not InstantInk.

Disclaimer: I got the printer for (effectively) free and use the free tier subscription which allows me 10(?) pages a month with no rollover. It has cost me about €2.50 in 3 years. I would never have paid for a modern HP printer.