Image and video editing are a very mileage may vary deal. Why? Because if you're fine using older versions of software such as Photoshop or Sony Vegas then you're in luck because they still work as they should and unless the old versions lack something you *need* to use you'll do just fine. Just don't expect to render videos at 4k smoothly. 1080p may work with 16gb of RAM but maybe keep it short and sweet on the video editing side. For model editing same thing applies with old versions of 3ds Max or Blender.
But Molly, can you do even more than this? Well yes, using this project called One Core API you can run games and apps that would require Windows 7 or even 10 as a minimum and push many of the limitations aside. Modern versions of actual Chrome, Firefox, maybe even Edge? Check. Discord? Spotify app? No discussion. Steam? Uncertain. But what is certain is that it will allow you to run some newer, more demanding titles both indie and non indie such as Ultrakill, Pizza Tower and even Grand Theft Auto V. However I cannot fully recommend you use One Core API due to reports of system instability that can come with it so only use it if you aren't too attached to your XP install and have no issue reinstalling often.
Ultimately I'd say Windows XP was a great operating system for its time and still is more functional than people give it credit. It's been a big part of my life since I can remember therefore it will always have a special place in my heart and I'm glad I'm not alone because there's a community of people making sure it still lives on to a certain degree and using it isn't as difficult as it once was or even as difficult as some may want to make everyone believe. Again, I'm not advocating everyone throw away their shiny new PCs to use a 24 year old operating system but if you have an old computer around maybe it's not as useless as you assumed it'd be. Regardless what is important is that you enjoy yourself and you do what you like! :)