samples VS downlords-faf-client

If you're relatively new to this, I would recommend checking out the JavaFX documentation at https://openjfx.io/openjfx-docs/#maven and starting from the samples: https://github.com/openjfx/samples/tree/master/HelloFX/Maven

i also replaced the build.gradle file contents with what the openJFX suggested i changed it to. then i sync'd it after changing the javafx version in that .gradle file to 17.0.1 instead of 16.

An example pom file (maven) for a JavaFX program looks like https://github.com/openjfx/samples/blob/master/HelloFX/Maven/hellofx/pom.xml

Yes, JavaFX is a pain to configure. I'd recommend using Maven or Gradle with the JavaFX plugin to manage your application, that way you don't need to download and configure the entire OpenJFX SDK. There are samles for both Maven and Gradle in the repo you linked, so I would try them out. Note that only the Gradle sample includes a wrapper, so if you try the Maven sample you'll need to install Maven first.

Non-modular project (i.e. not using java modules): https://github.com/openjfx/samples/blob/master/CommandLine/Non-modular/Gradle/hellofx/build.gradle

example maven no modular project structure here https://github.com/openjfx/samples/tree/master/IDE/Eclipse/Non-Modular/Maven/hellofx/src/main

supreme commander forged alliance and install forged alliance forever

supreme commander -> https://faforever.com/ is all you need

The real deal happens at http://faforever.com/

no worries. if you do end up trying supcom FA again, do yourself a favor and add this: https://faforever.com/ 15 years of community upgrades and progress and mods and ease of life features (even performance inproovements and graphics updates) for Forged Alliance condensed into one app.

Head to faforever.com (community run update project) and install/register that too.

I second this. still playing it to this day. it has a very active community of some 30 000 to 40 000 players over on the FAF client

Check out https://faforever.com/ if you haven't already

and yeah there are tons of people playing it actively these days (about 30 000 on the community-made FAF multiplayer client alone)

it's kept really active by a huge community of between 30,000 - 40,000 people on a platform called https://faforever.com/ (they've updated the graphics a bit)