Are we talking about this? £650.
https://twitter.com/i/web/status/1529787197800558595
I wouldnt celebrate yet, the new WHD isnt covering all low income people they added a strange high energy use criteria, there might be some weird criteria on this which stops some low income people from getting it.
Nukecad tends to be good at finding official documents, so hopefully he pops up soon with the details.
4.8 million claim UC late 2021 (dont know figures for legacy means tested benefits), so at first glance it does look they may not have exclusion, but hopefully Nukecad can confirm.