There is a 2hr train from London to Paris. It is possible that some traders would commute that, it isn't an unheard of distance. It would be tricky without freedom of movement etc, but it is doable.
Practically, it's a way longer commute.
But if you have an office close to Gare du Nord and a flat close to Paddington or opposite then it is workable. And one train journey commute without changing trains is enjoyable. (ie sleepable/workable)
Will have to endure that train, tube, another tube or walk, then eurostar with all the kids & luggage entourage for a Disneyland Paris trip in a few months.