Confusing instructions about using Classic Flyby11 vs. Flyoobe

I have an old Windows 10 computer, not supported for Win 11, that I want to upgrade. I haven't backed it up yet, so I just went through preliminary steps to see if this tool will work for my old computer. I followed the process to the screen, just before installation begins, where it shows that I have selected the option to Keep Files, Settings, and Apps. Then I stopped.

I had downloaded Flyoobe 1.0, NOT Flyby11_classic, because Flyoobe is supposed to clear out bloatware and provide an opportunity to customize the out-of-box experience. But I didn't see where that happens. Or will those options appear after the computer is running Win 11?

One thing I found confusing was the statements that you plan to merge the two projects in the future, which implies to me that I would have to run both programs in order to accomplish both the upgrade and the customization. Or maybe you have already merged them?

Thanks so much for this tool. (I plan to donate once the upgrade is finished.)