After trying to get the image https://bartholomew.foundation/wp-content/uploads/2021/11/hah-speaking.jpg on my test website using basic HTML <img> tag, I can confirm it’s also 403 forbidden.
As @M4rt1n suggest and already notice about x-frame-options: contains the value SAMEORIGIN, I am afraid you cannot do anything about it if it’s not your own website.
UPDATE: Or, I am wrong, as far as this should affect <frame> tag only?
Maybe some other HTTP header like Referrer-Policy?
