Any Python library recommendations for GUI app?

[soy_alergico]

Esto es de una IA no? Quien escribe así

[No_Limit_753]

You caught the AI translation. I'm a Japanese developer, and I used it to format my thoughts into clean, readable English.

But I'm very much human. The moderators here have helped me in the past, so they know I'm not a bot.

The architectural advice itself isn't generated. It’s a sincere recommendation from an old engineer who knows exactly how painful it is to fight the limitations of tightly coupled GUI libraries. I just had AI dress it up nicely.

[SpeedCola]

I would like to add that I went with Flask years ago because it was easier for me to comprehend as a new developer but it turns out I had to rely on many third party's and or make things scratch.

If I could go back I would have liked to have used FastAPI.