topic – drupal 8: how do I cancel the template of a region for a specific route?

I need to cancel a region only for a specific route. There does not seem to be a convention to name files for this.

Yes

page - myroute.html.twig cancel the whole page in "/ myroute"
Y
region - myregion.html.twig cancels all myregion on each page

I need to combine them into something like:

page - myroute - region - myregion.html.twig

This way of filtering by file name could be very useful. Does Drupal support that?

Thank you