Good news, no?
Well there is some fine print...it's Switch 2 only (for now).
Maybe some day :)

It will come to PC eventually but I think it won't come to GOG since we haven't got the other Yakuza games from SEGA

No, it's not good news at all, since:

1) the VA they've chosen to play Kiryu in English is a youtuber who is horrible at voice-acting and who gives atrocious performances.

2) if they are going to release it on PC, then it should be a free upgrade to anyone who already owns Yakuza 0.

If they were to try and charge money for it (especially anything over a price of a $4.99 USD DLC for the existing PC versions of Yakuza 0), then that would be a major ripoff scam.