I forget where I first saw this UI, but suffice it to say, it was only used for the total balance. The transaction history was in sats I believe. Also, I don't think it used words, but the symbols for Bitcoin and sats (so that wallet had decided they were going to use a sats symbol, which is another funny controversial thing lol)

Nonetheless, being used only for the total balance is more than enough to convey the meaning of the rest of the interface. Taking up too much space is definitely and argument for just displaying in sats and not in the Bitcoin denomination though.