You could upload images on phone, The time you upload and directly add the image it'll prompt with an error 'File is not an image" but if you'll tick the 'Show in directory' checkbox it'll allow you to upload.
meaning: in the "Popular Memes" section, you can either search up a meme, or click the "see more" button and be able to access those templates without it taking you to another page, and have to save the image, then re-upload it