Select default theme font when custom one is not installed on client machines

Hi all,
when using custom themes with custom fonts, it's not always possible to have the custom font on all the end users machines (for example on mobile phones).
It would be very useful to be able to specify the default font to be used whenever the custom one (used in the theme) is not installed in the end users workstation/device.

Thanks.

How to reproduce the missing feature:
https://community.powerbi.com/t5/Desktop/Power-BI-themes-how-to-drive-default-font-family-if-custom-is/m-p/1556162#M635573