a) Installing Google Noto Fonts
You have to install the required packages of Google Noto fonts.sudo apt install fonts-noto-core fonts-noto-ui-core
b) Removing Conflicting Fonts
Remove the conflicting FreeSans and FreeSerif family fonts.sudo rm -f /usr/share/fonts/truetype/freefont/FreeSans* && sudo rm -f /usr/share/fonts/truetype/freefont/FreeSerif*
c) Updating Font Cache
Update the font cache.fc-cache -f -v
You may have to restart your applications now. Then the problem should be fixed. You can also try rebooting your lovely system.
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