I know several of my machines say don't oil.
but my juki says oil daily
I also clean with each bobbin change
I have a set of makeup brushes with long handles
you can get back in there and pull all kinds of things out!
I have made this a habit because a few years ago a big ball of that link got pulled back up with the needle and when it came down for the next stitch broke the needle and threw off the timing!
an expensive repair bill can have you brushing lint in a jiffy!