Believe it or not but some content isn't conducive to being tweeted.

The high level summary you want is "Gamers Nexus is doing linux gpu benchmarking using bazzite". If you want actual details, watch the video (or at least skim to the graphs).

Personally, in this case I think the title itself is enough info to determine if it's an interesting enough topic to visit the youtube page to then read the description for more info before clicking play. Some lemmy clients even provide the youtube description in the post itself (the desktop Lemmy-UI only shows a short preview of the description).

For videos that don't have a simple premise and are difficult to capture in a short post title, I sometimes add a longer description and my own thoughts in the post body (such as when I post movies to !fullmoviesonyoutube@piefed.social), but for videos like this, which is quite straight forward, I don't feel the need to summarize their methodology of the benchmarks, since it's there in the video for those interested, but most will be more interested in the benchmark data itself.

A brief statement on how the OS used may be detrimental to windows would have been useful, for example.

This testing is not comparative to Windows benchmarks, it is only testing and comparing benchmarks on Linux between different GPUs. This is sort've a big deal, because GamersNexus is known for extremely rigorous and consistent testing, to the point where all in it cost them 10K in labor to fully set up their Linux testing suite. Long term this is a great boon to Linux gamers for deciding what hardware to purchase for their needs.