Even the cheap ones have a self clean setting. It just sprays water down the nozzle, and is between on and off. Turn it to that for a second and then off. Never had an issue. When I clean the toilet I use the same brush to glance over it, but really it stays clean on its own
I’ve had this for a year and no issues. Takes 5 mins to install and anyone can do it. $35 after tax. I think I got it for 27 or something last year. If you don’t like it after a while, you’re not out much. But Ive saved more than $35 in toilet paper since I’ve got it
https://www.walmart.com/ip/Mainstays-Dual-Nozzles-Bidet-Attachment-with-Self-Cleaning-in-White-Water-Sprayer-Bidet-for-Toilet/5613101215?wmlspartner=wlpa&selectedSellerId=0&selectedOfferId=D7457F3B7ACF397DB62BC5ACC71F57F0&conditionGroupCode=1&wl13=3137&gclsrc=aw.ds&adid=222222222785613101215_117755028669_12420145346&wl0=&wl1=g&wl2=m&wl3=501107745824&wl4=pla-394283752452&wl5=9013636&wl6=&wl7=&wl8=&wl9=pla&wl10=8175035&wl11=local&wl12=5613101215&veh=sem_LIA&gclsrc=aw.ds&gad_source=1
Maybe that ones fancier, idk