Entropic Whisper: Sir Moose master's entropy

Today's Video:

I think the title says it all with this puzzle. Absolute stunner from Sir Moose. Thank you for creating it and sharing!

Link to Play:

Entropic Whispers by Sir Moose https://link.sudoku-sleuth.com/EntropicWhispers

Rules:

Normal Sudoku rules apply.

Entropy Columns: Every 3 consecutive cells along each column must contain a low digit (1,2,3), middle digit (4,5,6) and high digit (7,8,9).

German Whisper - Digits along a german whisper must differ by at least 5.

Renban - Digits along a renban line form a consecutive set of digits with no repeats.

Cells separated by a black dot are in a 1:2 ratio.

Some of the sudoku grid covered by fog. Placing correct digits will clear the fog around the correct digit. Not guessing is required.