The announcement was buried amongst a whole bundle of other JRPG information from todays Nintendo Direct broadcast.
Im looking at you, Steam Deck.
The game was developed by the team behindOctopath TravelerandBravely Default.

Thats coming to PC today, in fact, on September 13th.
If you think that name sounds familiar then thats probably because Various Daylife was Squeenixs first Apple Arcade game.
Cor, it sure is a good time for Squeenix-flavoured RPG and strategy fans, eh?

Triangle Strategy releases on Steam on October 13th, and theres a pre-release discount of 10% off.
Its also being bundled with Various Daylife in a double pack.
No Steam pages yet, though, folks.