Help me with this opening: Engines hate it, GMs never play it, but I 'crush' with it.

I play the same general opening as white every game. The engines dislike it, and I've never seen a 2200+ player
move Pawn D4 followed Immediately by Pawn E3 eventually getting to pawn F3 and finally getting the double anchored Knight onto F5 (It takes 2 moves to get there) But once he is there he is a major headache until captured, which locks the center.

I'm curious if strong players could tell me what's 'weak' about it.

d4Nf6 2.e3e63.f4d54.Nf3c55.c3c46.g3Nc67.Bg2Bd68.O-ONe49.Ne5f610.Qh5+Kf811.Qf7#

There are only 2 major weaknesses I see with this opening:
1. Pawn F3 weakens Castling King side. (which doesn't seem to matter if the board locks in the center, (which it usually does)
2. Non Fianchetto Bishop (C1) gets blockaded. (but so does bishop on B8,)
but strengths are:
1. Knight is a moster headache.
2. If opponent Moves Pawn F6 to attack Knight It's all over because queen is coming to H5
3, This isn't an opening most players have seen. When playing superblitz people are often confunded. (Give it a try)
3. I LOVE locked positions. I like games where the board looks like Verdun or Ypres in 1915. Trench lines with almost no way through. The worst that can happen is a draw, and if I play superfast I can win on time.

<---Even without the quick mate damage is done once that pawn is moved.

All I know is Black has an easy time if he just plays King’s Indian style against it: lichess.org/RhETL8se/black Here I actually even played f6, but not till move 19. It wasn’t so bad then: lichess.org/fNL45ssO/black Stockfish seems to think I played both these games perfectly, even though my moves were not the ones it recommends. As you say, it just hates that opening. (The Mason Attack, IIRC?)

You're playing the Stonewall...a common enough motif.

You need to know something about engines:
1.
www.youtube.com/watch?v=zhkTHkIZJEc&t=182s
33:00

He's saying, that when engines were first invented, programmers wanted to actually make them intelligent rather than have them trust calculations, but the brute-force method swapped the valley. but.. Alpha-Zero is different - it uses understanding (self learning) according to Kasparov.

2. They don't evaluate correctly at closed positions, the closer it is, the dumber the eval. try - build a completely closed position - Chinese wall - all pawns block each other. on one side you put an a rook, on the other you put nothing. comp. always thinks that it has 5 points edge... it Never understands it's a draw. If you give it 16 bishops of dark squares, and you have a queen - comp. think it's winning, until he 'suddenly realizes' that it's mate in 3. (- you can go on light squares with Q & K, mating the enemy K)

Jonathan Schrantz - who learned the game at age 21, is constantly beating Stockfish at his channel.

www.youtube.com/watch?v=EH-drpvi35g&t=604s
Look how comp. doesn't understand that the f6 pawn is choking him.. (who said having a sense of fear is a bad thing? sometimes, there really is a danger..)

Kasparov embarrasses Fritz X3D:
www.chessgames.com/perl/chessgame?gid=1269891

'Engine' - a modern chess program. - Powerful & Stupid - Just like in the vehicles!

As for your other question - strong players not using this opening. Today not, before computers were strong, hmm... you've heard of Magnus, Botvinnik, Bronstein..

www.youtube.com/watch?v=0ISqzK6dhB4

Kasparov also said in same interview that today, because of comps. people don't think - they want the results, and that this is why Magnus is so strong - he's Not like that - he only uses a comp. as a calculator - he has his own method.

Example - the King's Indian (- before comps got strong), Grunfeld (a more tactical-based opening). - both hypermodern - you give away the center.

King's Indian - it's understandable. - human. comp. don't like it, true. Also true, is that White isn't Forced to close the position, but I know what I aim for. Nowadays too many variations against it, so it got confusing as well.

Grunfeld - while 'mathematically' correct, it just looks weird.. tbh. I saw the chessable course on it, I quit - it had no end to the variations... who can learn this?