Wine: How to fix held broken packages?

it seems to me your issue is you are attempting to use Cosmic sources with Bionic : https://wiki.ubuntu.com/Releases

run :

sudo apt-add-repository --remove 'deb https://dl.winehq.org/wine-builds/ubuntu/ cosmic main'
sudo apt update
sudo apt-add-repository 'deb https://dl.winehq.org/wine-builds/ubuntu/ bionic main'
sudo apt update
sudo apt install --install-recommends winehq-stable

also as a long-time user of wine who has experience using it, the best possible wine experience comes from letting other programs configure & use it for you, E.G. Steam and Lutris. While both are meant to be used for running specifically gaming apps, I've used them successfully with non-gaming apps. You should probably take a look.