I mean there’s very little you’ll find as an official spokesperson for Bitcoin but yeah, the dream of on-chain transactions being used for anything other than a funny speculative asset is pretty much gone.

It’s actually kinda crazy in a “voting yourself money” kinda way. Because as long as people believe that BTC should always increase in value then in the long run the returns should gravitate toward something like the weighted average worldwide inflation rate.

The downside of course is that unlike normal investments they don’t spur the real life economic growth necessary to sustain that inflation.

For many years now Bitcoin has been generally viewed by a large consensus to be a low throughput store of value, akin to digital gold. Many disagree with this ofc but it is a pretty mainstream view.

Those goalposts got moved years ago

It is definitively 'official'.

If you cannot use Bitcoin to quickly pay for your groceries at your local supermarket then it is quite useless to use isn't it?

There are other cryptocurrencies which are more suitable to these very basic use-cases hence why Bitcoin is the easiest cryptocurrency to attack for most critics.

As bizarre as this state of affairs is, Bitcoin is legal tender in El Salvador, who in turn have a seat in the United Nations.

That makes it an official currency: low transaction rates, energy costs, and wild fluctuations relative to other national currencies aside.

Who are you looking to "officially" decide that? Best you can probably do is look at what hard forks have occurred (such as bitcoin vs bitcash in this case) to see community splits.