Getting free skins is awesome but it can be a headache if you don't stay updated on the rules. I suggest checking out the
Rust drops guide on the CobaltLab blog to see how the system works this year. They explain exactly how to link your Steam and Twitch accounts so you don't run into any issues with the rewards. I usually just leave a stream open in the background while I am working to get my hours in. The blog also lists the upcoming dates so you can plan ahead and make sure you don't miss the specific streamer skins you want. It is a very straightforward guide that saves a lot of time and frustration.