VSCode. I don't get why Microsoft hasn't monetized it but I'm glad it is free. Has so many extensions and gets great updates, even if I don't understand half of the stuff in their patch notes when I open up the program.
Another one is a little program called Stacher that basically serves as GUI for yt-dlp. It's a very pretty one though! And all the settings and buttons are super great. I'm not very good with CLI stuff so I'm glad it exists for free, saves so much time.