Free up space on a small hard drive.

Hello. I work and study with a Mageia+W10 dual system on a computer that has a tiny hard drive, and in these tough times, I can't afford to buy another one with more capacity.
I like Mageia much better, but I need W10 because of graphics applications not available (and without an alternative) in Mageia, such as Topaz Gigapixel and Luminar 4.
My problem is that both operating systems are running out of space. Mageia is the one that worries me the most, as it is the system that I use the most.
Despite the fact that I have already uninstalled several applications that I used infrequently, I still have problems every time I want to install something new, or update what I have, for example Firefox.
Can you tell me Mageia folders where to delete useless files, temporary files and such, or tips on superfluous software to uninstall, so I can free up some space?
Thanks in advance.
I like Mageia much better, but I need W10 because of graphics applications not available (and without an alternative) in Mageia, such as Topaz Gigapixel and Luminar 4.
My problem is that both operating systems are running out of space. Mageia is the one that worries me the most, as it is the system that I use the most.
Despite the fact that I have already uninstalled several applications that I used infrequently, I still have problems every time I want to install something new, or update what I have, for example Firefox.
Can you tell me Mageia folders where to delete useless files, temporary files and such, or tips on superfluous software to uninstall, so I can free up some space?
Thanks in advance.