Exactly it was officially announced for the GR86 through a Toyota press release. Regardless of arrival time. It was still an official announcement which we have not got yet for the manual supra.
What? When did I say that?
Right there with ya. I'm way more interested in that and will be putting money down as well. That is the car I want with a manual... the Supra is just fine without it (OK not "just fine" it's better actually).
There only have been hand full of leaks via dealers. There could be more, but the top two I can think one was when someone had leaked 6th gen Camry from a dealer meeting and more recently when a dealer had leaked images of the 3rd gen Tundra.
A press release means that it has been officially confirmed and is no longer a part of the online rumor mill. For the 86 it was done in stages. It's not uncommon, tons of auto markers lunch new products through a similar process.
That seems to be more common with Japanese brands. Case in point the Nissan Z. We still don't have official pricings or delivery date. With the Germans we get all the goodies on day one like with the Supra unveiling at Detroit back in 2019. IIRC we got pricing, weight, packaging and etc. all at once.
