How come? Wipr 2 is going a good job for me. Why might I prefer uBO?

I haven't installed it but I might only because I can't disable Wipr 2 for some sites that I want/need. uBO Lite can do this. Other than that, I really like Wipr 2 and other apps by Kaylee.

Hmm, you should be able to, with instructions at https://kaylees.site/wipr-help.html#how-do-i-disable-wipr

(Not trying to talk you out of it. I have no dog in the hunt; use whatever you like. Just helping an Internet peer troubleshoot, as is my wont.)