I have main ssd drive with all my stuff and 2nd H Drive where I install my games
ssd is 120 gb and before ~20gb is being used
but something has happened and now 87gb is being used https://imgur.com/jF5rkdy
In the past (for some distributions) it was recommended to set up /usr on a separate partition. This is no longer valid. It seems that you have chosen a way to small /usr partition size (i have at least 20 GB of data in /usr, but it is no separate partition).
Your graphical tool is fancy but worthless for deeper inspection what’s up on your system (IMHO).
To get an understanding what are the biggest files/directorys inside of /usr you should post the output of:
sudo du -mx /usr | sort -rn | head -50
It will show the 50 biggest folders under /usr filesystem, sorted descendingly by size in MB. You can also have a look under other directorys (and get rid of the biggest unneeded files in a proper way…).
But as mentioned: your space for /usr is way to small if you want to use your system in a meaningful way…
Additionally i have to add, that the visualisation of this fancy tool is totally missleading. I was wrong in my prior post. You don’t have a separate /usr partition. But your home folder is also located under the / tree of gecorolling but this tool doesn’t show it. Also /var is not shown and many other system directorys… So your main space is occupied by some directorys not shown in your screen. What about /var? What about /home?