Just to answer in the appropriate Thread:
The filling of the 30 GB rapidly is a glitch of some description, either to do with how MJRO Cinnamon was installed, or to do with software you have introduced since.
Unless you downloaded a bunch of 4GB videos into Downloads, that figure, although I know it is true, is crazy.
I use MJRO Cinnamon every other day, and my output is (last few lines only)
96K ./.cinnamon/configs
4.0K ./.cinnamon/backgrounds/user-folders.lst
8.0K ./.cinnamon/backgrounds
108K ./.cinnamon
20K ./Downloads/dell-color-laser-3110cn_1.0-1_all.deb
12K ./Downloads/Fuji_Xerox-DocuPrint_CM305_df-Postscript.ppd
36K ./Downloads
4.0K ./.esd_auth
630M .
That is, a total of 630MB.
Sooner or later, I will get to producing a Thread "Space Hogs" (sounds like a Disney movie), but that could be in the 4th Age of Man, a millennium hence.
So as a preview, the following code
produces, for me
[chris@MJRO17dot11-Cinn-WD ~]$ du -ch -d 1 | sort -hr
632M total
632M .
548M ./.cache
60M ./.mozilla
21M ./.thunderbird
2.0M ./.config
1.4M ./Pictures
396K ./.local
108K ./.cinnamon
36K ./Downloads
16K ./Desktop
12K ./.gnupg
4.0K ./Videos
4.0K ./Templates
4.0K ./Public
4.0K ./Music
4.0K ./Documents
[chris@MJRO17dot11-Cinn-WD ~]$
You can see from this that ".cache", Mozilla (Firefox) and Thunderbird (also Mozilla) are the largest consumers.
I have one picture in Pictures (likely a screenshot), and something small in Downloads.
The bunch of 4K entries is an overhead for those folders being in existence (Windows and Mac have the same commitment).
So had you not deleted your Distro, we could have looked at that, but c'est la vie
Handy perhaps for you in future.
BTW establishing a separate Home partition will not mitigate this space issue if the same things keep occurring. If you have other operating Distros to back you up, it is better to work out what is the problem with the recalcitrant Distro? Yeah?
I also do not remember where you installed Citrix, but the timing may be indicative. We could also check with Manjaro's package manager or other avenue such as bash history, for what was installed via GUI and Terminal.
Cheers
Wizard