MacBook: Upgrade button remove
There is no delete key on MacBook keyboards, but there is a key combination with which you can "upgrade" the missing button. That's how it's done:
Retrofit the delete key with a shortcut
For example, to delete a character to the right of the cursor in Word, press the key combination "fn" + "Backspace" (delete key).
Tip: If you often use your MacBook on an external monitor, you can think about buying the appropriate keyboard - the "Apple Keyboard". The painfully missing remove button is already there.