Full English Breakfast: Four Sudoku Puzzles!

Today's Puzzle:

I stopped after puzzle four as I can honestly say, I had enough breakfast at that point!

Puzzle number 4 I found incredibly difficult, and I am not sure it's solvable without what I would consider bifurcation. Are you able to find a solution without it?

Puzzle 1:

Sumatra Blend by Michael Lefkowitz https://tinyurl.com/SudokuSleuthFullEnglish1

Rules 1:

Normal 4x4 Sudoku rules apply.

COFFEE QUADS - The sum of the cells surrounding each cup of coffee is the same.

Puzzle 2:

Summy Side Up by Michael Lefkowitz https://tinyurl.com/SudokuSleuthFullEnglish2

Rules 2:

Normal 6x6 sudoku rules apply.

BACON AND EGGS - Pair up each egg with a bacon cage. The number on the egg (read from left to right) is the sum of its bacon cage.

Puzzle 3:

Sum-Dried Tomatoes by Michael Lefkowitz https://tinyurl.com/SudokuSleuthFullEnglish3

Rules 3:

Normal 4x4 Sudoku rules apply.

SALT - Digits separated by salt have adjacent values.

SUMMY TOMATOES - The tomato cage and the indicated sunny diagonals all have the same sum.

Puzzle 4:

Sum-Dried Tomatoes by Michael Lefkowitz https://tinyurl.com/SudokuSleuthFullEnglish4

Rules 4: Breakfast Sumwich by Michael Lefkowitz Normal 6x6 Sudoku rules apply.

SUMWICHES - Each sumwich shows the sum of the digits that appear in between the highest and lowest digits in its row, and the same is true for its column.

ARROWS - Digits on the arrow sum to the digit in the attached sumwich.