I try to go every 6 months as I have some issues that mean my gums need an eye kept on them, but it's been a year for me recently. Fortunately, my gums were good! I use an electric toothbrush and have done for years, but keep meaning to also use a water flosser I got ages ago and as yet have not opened the box
I do floss with normal floss though.
How often do you go to the hygienist? Are your gums in good shape?
Also, is root planing still a thing these days or does it not happen anymore? One of my dentists told me a few years ago they don't really tend to do that these days, but I think others still rate it?