We don't actually know when the M2 was ready.
There are plenty of reputable rumors and reports that the M2 was ready well before the new Macbook Air design was ready. In fact, there were reports that Apple wanted to launch the M2 with the 13" MBP first and not wait for the new Air design.
Again, we don't need to keep repeating ourselves here. Covid work from home, supply chain issues, brand new Mac designs coupled with new SoCs meant that we don't know the actual update cadence Apple wants.
Logic dictates that Apple should update the M chips once a year due to economy of scale, volume of products that depend on new chips, and the fact that Apple made the M2 using A15.
I guess I haven't seen the same rumours.
In any case, the thing is Apple doesn't sell bare chips. They sell complete machines. Given that the M2 Pro and M2 Max and even the M2 Mac mini aren't even out yet and likely won't even be out until spring, I think it's unlikely M3 is coming by June unless you believe Apple is going to skip some of these models.
I suspect what may happen is the MacBook Pro M2 Pro/Max will be released in the spring, likely with an M2 Mac mini around the same time. Then the M2 Max/Ultra Mac Studio will be released months later. Then after that, M3 will come out.
Optimistically, that means fall 2023 for M3, but it could be later.
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On another note, after returning my scam 2017-in-a-2022-box Apple TV 4K, I ordered another open box, and this time got a pristine brand new looking 2022 Apple TV 4K 128 GB with 4 GB RAM. With its A15 SoC, it is clearly faster for tvOS navigation than my 2017 Apple TV 4K 32 GB with 3 GB RAM and A10X. Also, it's faster for loading and starting videos. However, it wasn't as if the 2017 was actually slow. It's just that the 2022 is faster. We'll see what happens when I start with Apple Arcade though.
As for the Mac mini M1 I got, my other complaint is its pickiness with monitor support. A lot of stuff that works on Intel Macs doesn't work on M1. If I use USB-C to DisplayPort dongles (and I've tried several), the machine won't wake the monitor from sleep. Granted, this is with an old dual-link DVI Apple Cinema Display with a mini-DP to DL-DVI Apple OEM adapter, but others report the same issue with modern DisplayPort monitors. If I use third party USB-C to DL-DVI dongles, it will wake up the monitor each time, albeit with a 4-8 second delay, but more importantly I lose HDCP support. This stuff works fine on my 2017 Intel MacBook with the same monitor and dongles (and with HDCP support), but not on my 2020 M1 Mac mini.
Because of this, and because my old monitor now has some burn-in, I've ordered a new modern USB-C 1440p 32" monitor. We'll see how that goes.