Not something that Shimano have ever provided a definitive statement on, but the collective wisdom seems to be yes, MTB and road calipers are interchangeable (at least for the 2-pot versions).
They're all fine, I've been using 4pot deore calipers with GRX levers for ages, mix and match away, even mixing stuff that's meant to use different hoses seems to work fine.
Not something that Shimano have ever provided a definitive statement on, but the collective wisdom seems to be yes, MTB and road calipers are interchangeable (at least for the 2-pot versions).