Hot Potato: Catch this Sudoku!

Today's Video:

Two questions for today, 1. What was the puzzle with the similar rule set we've played on this channel? 2. Why is it called hot potato?

Comments down below if you know either please!

Link to Play:

Hot Potato by sujoyku https://link.sudoku-sleuth.com/HotPotato

Rules:

Normal sudoku rules apply, i.e. each row, column and 3x3 region has to contain the digits from 1 to 9 once each.

Killer cages: Digits in a cage do not repeat and sum to the clue in the top left. Moreover, if cages are adjacent to each other (i.e. share an edge), they have to contain at least one common digit.