Installing fonts on Inkscape

Hi, I’m trying to install a couple fonts onto Inkscape, but I’m not having any luck. I’ve downloaded the fonts I want and installed them. I’ve restarted Inkscape, and attempted to install the fonts for all users on my computer (It was just me, but I added myself with a different email so there’d be multiple accounts on the computer), all to no avail. Anyone have any suggestions or tips on how to get the fonts on Inkscape?