Look, in MTT I take it as follows.
From the beginning to the final table, you only have to worry about the 8 players you have at your table.
You are going to have everything, and all kinds of player variants.
There I think your strategy should always be.
Where possible find the weakness of each player.
I think that you should also be very clear about the positions.
So, if you manage to at least control that table, your stack will go up and you shouldn't necessarily worry about your position in the MTT.
In long MTTs or in general those of Deep Stack, you must have a lot of patience.
But always understand that you are playing against 8 players.
My regards, brother