I like that more frequently used tags are showing up in the tag cloud with a larger font. However, they are dramatically bigger than even the settings I have for the section header. Can this be modified to show a different (smaller) size?
You can see an example at https://guysongames.com/
This option is not available with the theme and usaully better handled by plugins. You can try this plugin https://wordpress.org/plugins/ultimate-tag-cloud-widget/ to control the look of the tag widget. Hope this helps and give it a try.