For desktop sharing, older Pi's are not supported.
From the announcement (emphasis mine):
https://www.dwservice.net/
From the announcement (emphasis mine):
For older Pi's I prefer the open source DWService.First of all, Raspberry Pi Connect needs your Raspberry Pi to be running a 64-bit distribution of Raspberry Pi OS Bookworm that uses the Wayland window server. This in turn means that, for now, you’ll need a Raspberry Pi 5, Raspberry Pi 4, or Raspberry Pi 400.
https://www.dwservice.net/
Statistics: Posted by Paul Hutch — Thu Aug 01, 2024 11:48 am