Is there a good alternative to Winstall for Linux packages?

You might want to check out Flathub, Snapcraft, or AppImageHub. These sites host a variety of Linux packages that could be what you're looking for! Flathub especially has a great selection of apps that are easy to install. Also, don't forget about packages.ubuntu.com if you’re on Ubuntu!

For many users, GUI software managers provide an easier way to find and install packages. They give an app store-like experience, which makes it less of a hassle than command line tools. Have you tried out any of those?

If you happen to have a .deb or .rpm file from a project, you can usually install it directly with commands like `apt install ./abc.deb` or `dnf install ./abc.rpm`. It might save you a bit of trouble with dependency resolutions.

The official repository for your distro is always a good first stop! For searching, you could use commands like `aptitude search packagename` or explore graphical tools like Synaptic Package Manager. If the package isn’t found there, then looking into Snapcraft or Flathub would be a good option!