Photos should be shown as separated, do not wrap it in <slideshow>.
6.2.3 Galleries and slideshows ... EXCEPTION! Slideshows must not be used: ... (!!!!) When the article consists entirely of a slideshow (and its caption/description) and there's no other content.
Log in here to create Instant View templates. Please enter your phone number in the international format and we will send a confirmation message to your account via Telegram.
6.2.3 Galleries and slideshows
...
EXCEPTION! Slideshows must not be used:
...
(!!!!)
When the article consists entirely of a slideshow (and its caption/description) and there's no other content.
https://instantview.telegram.org/checklist#6-2-3-galleries-and-slideshows