I have a question where the seemingly simple solution seems to be eluding me. I also don't see it anywhere online. When I create a site template with Sharepoint Online where are they stored? I need to delete one but I can't seem to locate where they are kept. If I cannot go directly to a URL and just "delete it", is there a way to do this programmatically with powershell?
If you created the site template using the
Site settings > save as template options,
It will be in Solution Gallery which can be access by this:
Click Settings SharePoint Online Public Website Settings button and then click
Web Designer Galleriessection, click
Here is good article about it: Create and use site templates