The image I share is not available to be viewed in full resolution online via Nextcloud.
Steps to replicate it: View this image. Then download it. What you view online is not the same as what you download. It should be.
Nextcloud version (eg, 20.0.5):
Operating system and version (eg, Ubuntu 20.04):
Apache or nginx version (eg, Apache 2.4.25):
don't know, it's running on Cloudron
PHP version (eg, 7.4):
See here for reference, Image preview in sharing page should show the full image · Issue #7614 · nextcloud/server · GitHub .