This one has been bugging me for awhile, so I don't know when it started. But images in-line in the text portion of posts show at their original resolution, and do not scale down.
Example: https://50501.chat/post/19511
Etc
Possibly related, images that are wider than they are tall don't scale down in comments.
Awesome, thanks!
Just tried toggling that setting (set to Never on my end). It corrected the scaling even with the post already loaded, and then reverted with the setting. Same with wide images in comments. Good catch!