Not much I can offer on the posted game that not has already been said.
An idea or two but it all gets clatty.
But I did check out the sister game where you are White v my2sons.
I notice that both games finished within a minute of each other and both draws.
Was this a:
'I'll agree a draw in my better postion, if you agree a draw in yours situation?'
Nothing wrong in that and I'm not fishing it just in the final postion of your White.
Black to move.
Black plays Rxe1+ and wins the ending fairly easily?
I've added the ? because endings are not a field I walk tall in.
But I have lost a few 2+3 v 2+4 King and pawn endings in my past.
Usually as White when one of my gambits has failed miserably.
It is a Black win yes?.
Black plays e5 pushing the candiate passed pawn, then activate the King.
The plan I failed to stop was Black blocking the Q-side, creating a passed
White has to chase it and the BK walks over to eat the a+b-pawns 0-1.
My endgame knowledge is based soley on rules of thumb.
But King and mulitiple pawn endings where one side is a pawn up
are meant to be the easiest to win.
Just want to know if I'm right?
(about this ending, not why it was agreed a draw - that does not matter).