Hello @Nando13,
You can do it by making 1st unit free.
You can do this from, courses>click on a course> edit course> pricing > Make First Section Free
Refer: https://www.screencast.com/t/IeWyyg6lqc
Thank you,
Hello @Nando13,
You have to disable a setting from,
wp-admin>LMS>uncheck "Free units must be accessible only to logged-in members"
Refer: https://prnt.sc/rnsbr4
Thank you,