I know that Avrdude is a command line executable program and I have been using it for a month now.
I was just watching a video where the GUY mentioned that AVRDUDE GUI is very handy if you want to read or write the fuse bits and it's very interactive.
I then searched for the GUI on the internet and I found plenty of them made by people.
But is there any OFFICIAL GUI Program from Avrdude that I can trust?
For windows, there is AVRDudess
I haven't used it at all, and I don't know if that's the GUI that the other poster was referring to.
Atmel Studio (now "Microchip Studio", BTW) has a GUI for setting fuses, but it will only work if you are interacting with a vendor-supported programming device (probably NOT "Arduino as ISP")
There is the well known AVR FuseCalc online program for calculating the fuses, but it doesn't interact directly with programmers...