toallpointswesthttps://www.omgubuntu.co.uk/2022/11/upscaler-open-source-ai-image-upscale-app-for-linux
This app works like a charm!!! You have to install and configure Flatpak in order to run it but it's AMAZING! Warning, it will turn a 700K file into a 4MB one, so watch your disk space
