Hello,
Check this topic – https://www.8theme.com/topic/problem-with-size-of-icons-in-header-and-mobile-bottom-bar/
About the font, I do not see the problem on different pages – https://prnt.sc/k9srKEv650AR https://prnt.sc/DVmUOSvVRT8x https://prnt.sc/iEL5zSxKtyXH https://prnt.sc/OWhlG7adDQVy https://prnt.sc/PzoAzI4xavEt
Regards