If it’s in Packages instead of Libraries then you created it as a Process not a Library. This is the first step when creating the new project in Studio, selecting whether it’s a Process or Library.
Now I changed Settings > Deployment from “Only host feed” to “Only tenant feed” and now I can see the Upload button. I retried to upload the library with these settings and now everything works well including the process is running
After this change there appeared a new Libraries feed in Automation Ops