I am a new user, so maybe this is very simple question. I cannot see Add-ons in my Settings. Installation method is Home Assistant OS on Raspberry Pi 5. I am the owner. Advanced mode is on. So why add-ons are not available?
Addons have been renamed apps.
A tip. Always worth reading the docs before following online videos and stuff. As these changes happen often.
if you don’t see something you expect to see the first option is always to refresh the browser cache ( ctrl-F5 )
I am ashamed 
Thanks a lot.