Keeping up with Delchev continues

Here is an interesting ending

Vidit-Ragger

Exchange Variation Be3

2nd Prague Masters 2019 Rd3

After 40..Bb4(Diagram)

A pair of active bishop often is good compensation for a pawn in the endgame. White is up a pawn and is fully coordinated

What do you recommend for White?

After 400..Bb4