Short and Sweet Thermo / Knight's Move Puzzle

Today's puzzle is Two Thermo Snack by Die Hard, an excellent introductory puzzle for inexperienced players in Sudoku variants.

You can play along using the link down below: https://tinyurl.com/SudokuSleuthTwoThermoSnack

Rules: Each row, column, and 6 cell region must contain the digits 1 to 6, once each. Digits on thermometers must increase from the bulb end. Cells separated by a knights move must contain different digits.