Thanks, Carolyn! Glad you asked that, I didn't make it clear that all of the 'chunks' of that burgundy Philo came from leafless sections of a REALLY long stem that I cut into pieces. I didn't show any pics of the mama because she got frost bite, losing all of her giant old leaves, and now just looks like one of these new babies. So the growth you see is known to have occurred over the past year.
If you are interested in trying that kind of propagation, I used pieces with 2 nodes, and stuck them at about a 45 degree angle, so the buried node would be closer to the surface, giving the potential growth tip from that node the easiest possible route to out of the soil. If you just want to remove a tip, no more ceremony than sticking the cut end in in a pot should be needed. No harm in putting it in water first, but an unnecessary extra step and adjustment for the plant.
The stem I can see on the one part of your plant is impressively thick, should have plenty of stored vigor. Cool to hear it extends farther than I thought. Agreed, if it's tipping, something should be done.
One can also use some type of trellis or pole for the vines to climb, like they usually do for Monstera (swiss cheese plant.) See the aerial roots attaching themselves to the wood? Climbing instead of dangling can also encourage larger leaves, more quickly.
It's about time for me to find something for my PP to climb, it's leaning, and I'd like to see bigger leaves.
Look forward to seeing pics at some point after you've decided what you'd prefer. Lots of fun things one can do with these kinds of plants.