The game screen is too small. Yes, you can make this full screen by pressing alt-enter. However, when you record it using screen recorder, the game screen is still too small. How to adjust the game resolution?
It's a RPGMaker thing. You can try using Magnifier to see if that helps (a friend streamed it to Discord and got highquality photos with it). Besides that, I don't think you can.
Most recording programs let you adjust the size of what's being recorded (ex. OBS)