Machine and human ELO ratings are decorrelated. No games are played between a full strength engine and a human anymore. Even Magnus can’t win against a top engine. He might draw if he is lucky.

ELO is dependent upon the pool of players that one plays in. Engine ELO's have no relationship to human ratings because no humans play computers under normal conditions. For an example of this phenomena taken to extremes, Claude Bloodgood [1] was a strong amateur who ended up as officially rated as one of the top players in the world (and #2 in the US) simply because he was only playing against a pool of other prison inmates who were in turn playing only against each other. So all his rating reflected was his relative strength in the prison pool.

Computers are definitely much stronger than humans, but not 3600 better. Magnus would certainly be able to eek out plenty of draws, if not only because white can create "simplified" (as a euphemism for dead) positions in just about any variation if he really wants. And Magnus regularly plays these sort of positions literally at the level of supercomputers.

I'd also add that much of the dominance of computers is not based just on raw ability alone, but more psychological issues. Humans can become tilted, intimidated, frustrated, tired, and so on. One of the last major human vs computer events was Kramnik vs Fritz. Kramnik, in a relatively simple position, ended up blundering mate in 1 with plenty of time on his clock. It's unlikely he would have ever made the same mistake against a human. It's just very difficult to get in the same mindset when playing against a human as when playing against a computer. Chess, in spite of being a game of complete information, is still extremely influenced by psychology.

[1] - https://en.wikipedia.org/wiki/Claude_Bloodgood

Winning chance is basically 0.0% against current strong engines for a human. There are possible draw lines but if engine is configured correctly draw chance is also 0.0%

That is not quite the right calculation. To see this, try plugging 0.75 into the same formula to get Stockfish's expected score. The result is about 0.3545. If this were the correct formula, then the two expected scores should sum to 1, but in this case we only get 0.3612.

Instead, you should convert the 0.25 to "odds" form. 0.25 is 1:3 odds, represented by the number 1/3. (1/3)^((3585 - 2864)/200) is about 0.01905 (still in odds form). To convert this back to an expected score you would take 0.01905 / (1 + 0.01905) = 0.0187. So Magnus Carlsen's expected score is 0.0187.

Applying the same method to Stockfish, we have 3:1 odds, which is represented by the number 3. 3^((3585 - 2864)/200) is about 52.48. Converting back to expected score we get 52.48 / (1 + 52.48) = 0.9813. So Stockfish's expected score is 0.9813.

Our sanity check is to add 0.0187 + 0.9813. The result is 1.0, as it should be.

Stockfish competes in fide competitions?

This is somewhat misleading because there have also been no classical time control human-computer matches since 2006 when Kramnik played against Fritz. That match more or less ended interest in these matches.

Every game was drawn until Kramnik randomly blundered a trivial mate-in-1 in a simple position. That mistake was undoubtedly driven by psychological reasons. Playing against an engine is nothing like playing against a human and it's difficult if not impossible to put oneself in the proper mindset to play well.

The following games were then also drawn until Kramnik decided to do the chess equivalent (when playing against a computer) of going for a hail mary, with black, in the final game to try to even the match score. Suffice to say, that failed and the match ended as a generally disappointing, for everybody, 4-2.

There have been a variety of gimmicky matches since (fast time controls, various odds matches, etc), but nothing serious.