I think Adil said he was switching to Mon-Wed mid-summer presumably when Ben takes a break so I guess he'll do Thu/Fri then. Because god forbid any presenter in television works a five day week nowadays.
I assume Charlotte and Ranvir are sharing Wed-Fri?
A five day work week for these shows are never the norm, even in the states. This is one of the luxuries of working in television. Many US talk show hosts also only do a four day week. I do know people like Stephen Colbert does a five day week, by pre-taping his Friday edition on Thursday, enabling him to say he works five days.
I have to disagree . ALL the US morning show hosts do a 5 day week, even now when most of them have 3 regular hosts. Some even do/did a 6 day week, like George Stephanopoulos who does a Sunday morning politics show. On cable, Jake Tapper also does a Sunday show, besides his weekday show, Wolf Blitzer has been doing months without a day off during COVID19.
Savannah Guthrie still came to work on the morning she had her latest eye surgery scheduled, did half of the show and then left to have surgery. TV hosts like her have multi-million dollar contracts but they do put in the hours and them being on the show, daily, is important.
It's true that some daytime talk show people tape Friday shows, but even that doesn't happen all the time. The View has been live on Fridays most weeks now, wanting to keep up their momentum and ratings surge.
To sum it up, imo, the US and UK approach when it comes to personality commitment to daily shows is completely opposite.