I am running macOS Mojave 10.14.6 (Supplement 2).
I have not faced any extraordinary system storage issues like some other posts on the site which say that their system storage is around 150+ GB. However, every now and then I check my system storage usage and the number keeps on increasing. As per my memory, initially (a month ago), system storage usage was around 30 Gigabytes. 2 days back, storage management reported it to be 40 GB. Today, the system storage shows around 42.5 GB used. I don't understand what his happening and since I have a small SSD on my MacBook this storage increase effect is very annoying.
What should be the ideal system storage usage on macOS Mojave? How can I fix this to get back my lost storage? Will upgrading to macOS Catalina further increase system storage usage?
I have installed DaisyDisk as per recommendations on similar questions but I don't see how to 'fix' anything from DaisyDisk. (I am on the trial version)
There is 4 GB of space in 'other volumes' but I haven't partitioned my SSD till date. Is this storage used by the OS as swap?
Here's a screenshot:
Note: It would be great if solutions do not require installing 3rd party apps unless necessary, thanks!