Did and do you like using the command-line with apt-get and apt on Debian based Linux distributions ?
Well, Linux Mint is providing apt as a wrapper which makes it different from the one on Debian (even on Linux Mint Debian Edition, aka LMDE).
If you try your beloved
# apt update && apt -y upgrade
it will bail out with lots of lines with information.
However, you can just adapt by turning things upside down.
# apt update && apt upgrade -y
works fine.