Whispering Saddle: New Sudoku Variant in an Exceptional Puzzle

Today's Puzzle:

Excellently constructed puzzle from Schma to show off this variant. P.S. maybe some do some Sudoku along the way...

Link to Play:

Whispering Saddle by Schma https://tinyurl.com/SudokuSleuthWhisperingSaddle

Rules:

Normal Sudoku rules apply.

The brown circle is a saddle point and is always connected to 4 brown lines representing a saddle. Moving away from a circle, digits on a line have to either strictly increase or decrease in relation to the number in the circle. Each circle has two opposite lines with increasing property and two opposite lines with decreasing property.

Adjacent digits along a green German Whisper line must differ by at least 5.

A digit in a white circle must appear in the four surrounding cells.