Hide "@" for Location in Agenda Widget

create a child theme https://time.ly/document/user-guide/customize-calendar/create-new-calendar-theme/

override agenda-widget.twig, the variable used is text_venue_separator. Or maybe even better, just add a filter to inject your custom separator (or simply remove it )

https://time.ly/document/user-guide/customize-calendar/injecting-custom-php-code-templates/

What a huge hep this was. REVOLUTIONIZED how I manage this plugin. Thank you!