Good books on Endgame for 2100+ rating range

Sometimes masters respond and it helps point players in a more specific area.

You will find de la Villa’ 100 and DEM in Chessable, DEM is right now on intro sale. I like DEM, but I find useful to use also Lamprecht /Mueller as a complementary book to DEM (I recommend DEM because you can train it in Chessable using spaced repetition, so you will be sure that you will learn the stuff well; Lamprecht /Mueller are not available in Chessable).

But the explanations by Lamprecht/ Mueller are really helpful, for instance to understand the correlated squares.

Perhaps you can order both, learning DEM in Chessable using spaced repetition and Mueller as an additional work, if you are serious about improving the endgame. It is well invested money.