Whonix-Host - in development at time of writing - will be based on Kicksecure.
added just now:
Wording clarification: There is no such thing as “Alternating-Bridges”. It’s not it’s own word. It means “a bridge to alternate”. As in “use different bridges”.
“recommended” is such a strong word I try to avoid. There are complex technical topics and these cannot be boiled down to yes/no. Details are here:
Better look at / ask in the original ticket if anywhere.
No updates there - assume there are no updates.
I am not aware of any changes.