That’s really great to hear, thank you for the comment :)
Image size manipulation is something that’s on the list, and it’s one of the features that myself and the dev for LemmyTools was working to bring over from the userscript
Here is the specific issue, although I’m not sure when I’ll be getting to it: github.com/cynber/lemmy-instance-assistant/…/28
In the meantime, you could also try out the userscript itself and see if it does the job, and also what could be improved when we do bring the feature over: github.com/howdy-tsc/LemmyTools