1)You get thru downloading the thing since it advertises support for your printer, 2)Click on it to start using it right? 3)Right? 4)X out of the login window because you don't have a login and don't want one thanks. 5) Put the newly downloaded file in the trash bin. 6) Right click on the trash bin and "empty trash" 7-10) Relax for a bit since you don't have yet another data collecting app spying on you. But then post about how shitty the experience was.
I can't believe anyone would actually create a login to use an app like this. Fuck that. I will just use shitty chitubox for now. Fuck^2, but at least I don't live in some shit server with all my 3D models stolen or my credit card or GPS or whatever the fuck they want to get from me. I'm sure chitubox is already doing it, but hey I don't need a password for that.
Only just got your reply, but just in case:
Make sure to read through this if you are exploring this route https://github.com/sn4k3/UVtools/wiki/Setup-PrusaSlicer