SharePoint Modern Communication Site Anonymous Access

Hi

I am working with SharePoint 2019 On-Prem and building a custom Communication Site with SPFX and React.

The idea of this site is to be public internet facing site and mostly users will be anonymous (just as the old publishing site).

Now how can I hide the login prompt that is being displayed to users ?

I hope that I will not be forced to go back and build everything back from scratch on old SP Publishing Site.