When I use a notebook that is either lined or dotted, I almost always would prefer to be able to just tear off pages as I’m done with them.
Like now I’m looking at a A5 Leuchtturm1917 dot grid notebook at page 114 and 115; it is my bullet journal. I would have removed most of the pages before that, if it was easy to do so. First and foremost because there are a lot of pages in there that are completed or irrelevant and I think it is much easier to deal with things when you just remove all the cruft.
I could just kind of tear them out or cut them out. And it is something I have considered, but never actually attempted to do.
For me most of my notebooks are not something I keep, but rather just something I use as a tool right now. And I just throw them out when I’m done with them. And I’d really like to just kind of do that as I’m working my way through them. This is the reason I always use Rhoda pads for everything where I don’t want to be able to look at both A5 pages at the same time.