Unfortunately I am still having the same problem. The font is showing up when I’m working on the theme but the live version (except on my Chrome browser) is still incorrect.
If you want to add a font to an existing theme through the Shopify admin, then you should store your font in the Files section of the Shopify admin. This is because uploading some types of fonts to the assets directory through the admin code editor might lead to file corruption.
Would be nice to see the actual store (preview if not published) to have better ideas.
Also – you’re overriding font-family for your headings in each sections “Custom CSS”. Like this:
h1,h2,h3,h4,h5,h6 {font-family: "Floane", serif;}
While technically it should work, but you need to do it for each section, so the much easier approach would be to redefine CSS variable used for this by theme code:
Finally, set the Heading font in “Theme Settings”=> “Typography”(?) to one of the “System Fonts” (Sans-serif) so that you’re not loading the font files you do not need.