Hi again,
In WordPress 5.3, a new feature was added that automatically creates a “-scaled” version of your images if they have a width or height larger than 2560 pixels. For such images, WordPress will serve the?scaled?version and it will not use the actual original image. This scaled?version will be compressed by the TinyPNG plugin if you enable the original to be compressed.
If you prefer to have the original image compressed instead of the scaled?version, you can disable the creation of scaled?images by WordPress and let the TinyPNG plugin handle the resizing. This way you will not have both an optimized scaled?version and an unoptimized original version on the server. See for example?https://darkog.com/blog/how-to-disable-wordpress-5-3-image-downscaling-feature?on how to disable the creation of a -scaled version.
Hope this helps!