Is Minesweeper luck or logic?

Mostly logic, with a catch: the classic version places its mines at random, and a random board does not promise to be solvable.

Where luck comes in

In the classic game the mines are scattered at random. Sometimes the first click lands on a mine (many versions move it for you). More importantly, some boards reach a point where no deduction is left, and the only way on is a coin flip. Strong players know these spots well: patterns where two layouts fit every number and the game gives you nothing to tell them apart.

Where logic comes in

On boards that can be solved, everything is deduction: counting, comparing neighbouring numbers, using the total, and proof by contradiction (see the four rules). Good players lose far fewer games than their share of luck would suggest, because they spend their guesses only when the logic really runs out.

No-guess puzzles

A no-guess puzzle is a board that a solver has proved can be finished by logic alone. The solver plays it the way a careful person would, and the board is kept only if it never has to guess. A good version also makes sure the first move is certain, so even the very first tap is not a gamble.

Tiptoe Safari works this way. Every level is checked by a solver, every board starts with a safe move, and when you are stuck the lightbulb shows the next certain tile and the reasoning behind it, including a proof by contradiction on the hardest boards.