Hi dyerkutn,
Thanks for reaching out using Apple Support Communities. Here to help.
We understand you are inquiring about changes in Safari features.
Customizing the home screen is still available, including showing a section for frequently visited and favorites. You may want to check the Start Page options in the bottom right corner to ensure all sections you are looking for are enabled. You can also remove individual items from the Frequently Visited or Favorites by performing a secondary click on the website and choosing Delete.
More about customizing the start page in Safari can be reviewed below.
Customize the start page in Safari on Mac
Hope this helps! Let us know if we can assist any further.
Take care.