It’s no bid deal, but I’m just a bit confused… well,what else is new 
… about the onboard LED. The Pico 1 that came with my PicoCalc blinks, aka the heartbeat, while it’s running, but when I replaced it with a Pico 2W, it doesn’t. It did blink when I played around with other Picomite versions, so I though it was just the PicoCalc firmware, but I’ve seen some other peoples where it appears to be blinking. Is it a difference between the “Official” and “Unofficial” versions?
For some reason Peter decided to turn the blink off in WebMite yet on in PicoMite !?. Try ‘option heartbeat on’…
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The LED on a Pico 2W (and Pico 1W and Pimoroni Pico Plus 2W) works differently from the LED on a Pico 1(H), Pico 2(H), and Pimoroni Pico Plus 2. On the latter boards it is tied to GPIO25 of the RP2040 or RP2350, but on the former boards it is tied to GPIO0 of the CYW43439. Therefore, to access the LED on the former boards you need to have a CYW43439 driver, in this case as part of WebMite, installed and working, and the software behind it is completely different even if it looks the same at an API level to the user.
As a result, if you install PicoMite on a Pico 2W there is no way the LED will work, because it will be attempting to control GPIO25, which on a Pico 2W is tied to the CYW43439 rather than to an LED.
As for whether WebMite blinks the LED on a Pico 2W, that is something I really do not know about myself, but I would not be surprised if it did not because the control and data paths for controlling the LED on a Pico 2W are significantly more complex than those for controlling the LED on a Pico 1(H), Pico 2(H), or Pimoroni Pico Plus 2.