I haven’t been able to use it yet (I don’t have a computer that meets the specs), but if you visit https://github.com/upscayl/upscayl you can download an application that enlarges images using AI.
You may have had experiences in the past when you tried to enlarge an image, it would look pixelated. Now with AI, things look a lot better. Like I said, I haven’t tried this specific tool yet, but I’ve used some online tools, and they do a remarkable job.