Thank you.From the Belgian Race Directors Event Notes
Belgium has a limit on where they can be done, after leaving the pit lane but before the second safety car line.
So, yeah from the comparison with the previous races notes, Hamilton doing the starts in that position is absolutely fine. He was after the pit lane, space to his left and against the pit wall on the right.
That reference to sc2 line in the the Belgium event notes makes it crystal clear of
Leclerc rule breach in doing a practice start after the sc2 line yet masi went out of his way to sweep it under the carpet.