Help, which kitchen layout?

[Newbie2025]

Hello,
I'm undecided between 2 kitchen layouts, one is an L shape so would give us floor space and a nice open space, the other option is to place shallow units on the 3rd wall and have is as a U shape but not sure if this will feel too closed in and make it feel claustrophobic when we're all in the kitchen? The advantage of the U though is a little extra storage and most importantly more worktops. WWYD?

I did debate that, although I like someone's suggestion of a plinth heater and I didn't realise they run off the central heating so that could be an easier option than underfloor heating possibly