I’m sorry but I am not sure where to post this since it is not about helping, it is more about giving me some information 
if you find it necessary, you may move the thread
So I use Leap now and I am heading towards a stable system I can rely upon for my studies and crashes and stuff annoy me a lot
But I want some software that are classified as “unstable” in package search (https://software.opensuse.org/find) , for example the Guake dropdown terminal and gelemental (the periodic table).
**What are the drawbacks of installing these “unstable” packages? **
They are pretty common applications in linux from what I see in other distributions. Installing unstable packages like these will cause something to my system?
I think “unstable” here only means that it is not an official repo, so nothing is guaranteed. You install at your own risk.
In most cases, the risk is that the software will crash. I suppose there’s also a theoretical risk that the owner of that repo sneaked a virus or other malware into it.
Hmm…Ok I see but that won’t affect the rest of my applications? if it doesn’t work properly, I remove application and repository and all is fine. Correct?
In most cases. However, if the application runs (or partially runs) with root permissions, then anything is possible.
If it replaces an existing library, then that could interfere with other applications. I think you would get file conflict warnings in that case.
thank you!