I really like the vibe of this game, and the way the controls are shown at the spawn looks really good. There are just a few things which I feel are needed to make the game a lot more fun. Mainly being able to move the camera so it doesn't get in the way of you seeing what you are doing, and making it a bit clearer how you are supposed to return some of the samples.
E.g. for the sample on the right I thought it was really intuitive that you drop the sample moving under the ledge since the sample is too big. My next thought was I must have to jump then throw it over the ledge but I couldn't figure out if there is a way to do that, and you can't see any of the things you use to double jump so it isn't really clear what you are supposed to do there.
The sample that you can't jump whilst holding is also a cool idea, but I really felt like the solution should be that there is a way to throw the sample in order to get it to gain elevation but I couldn't see a way to do so. I did figure out that you can drop it on your head and then jump with it but this doesn't make sense to me as if it's too heavy to jump with then this should also not be possible.
Overall though it seems really cool, and with a few tweaks it could be a really fun game :)