also there is a solus 3P install. I did this for the coveted TNR font...
per https://getsol.us/articles/software/third-party/en/:
Microsoft Core Fonts
sudo eopkg bi --ignore-safety https://raw.githubusercontent.com/getsolus/3rd-party/master/desktop/font/mscorefonts/pspec.xml
sudo eopkg it mscorefonts*.eopkg;sudo rm mscorefonts*.eopkg
your source's commands are similar to solus' commands but different. use solus's install command for ms core fonts.
worked for me anyway. I'd uninstall all that stuff, reboot, and try solus. my 2 cents.