Does that mean you use it as a numpad now? If so, what caused you to change?
Yes use it as a numpad now 100% of the time.
It was just a habit vs convenience thing. 30 odd years ago, there were still plenty of Model F and Model M keyboards around, so rather than having to be a polyglot, you naturally used what they had in common, so I used the numpad on the model M predominantly as a cursor pad in the same way as the Model F.
Now I also used to do vacation work as a kid in high street retail banks where we used to key in cheque (check) information using number pads, so I became pretty proficient in using number pads, so there was also reason to switch from cursor mode to numpad mode on a model M when there was a lot of numeric data entry stuff to do.
Once Model F keyboards went the way of the dodo, I gradually got used to the separate cursor keys and convenience of having them separated, and moved over to using the numpad 100%, but it did take some time, my muscle memory on the numpad's cursor keys was pretty ingrained, old habits die hard.
I'm by no means a touch typist, but I do need the comfort factor of having keys in the right place, and with the right symbols the right way up. I mentioned earlier that some RGB keyboards have their shifted and unshifted symbols switched, particularly the top row number keys. Worse are some of the keys to the right hand side of the main cluster on UK keyboards (and presumably the same applies on US keyboards), so shifting now has the opposite effect of what's written on the keys.