hello. the vine will just continue growing at the end (so, getting longer). it's a very nice plant even though it is a single vine, but if what you want is for more growth at the top for more of a bush then you are either going to need to buy more or propagate that one long vine and grow it yourself from the cuttings.

Pinch the growing tip to force it to send out more vines. Or wrap the vine back on itself tacking some of the nodes to blank areas of the soil. After a few years you will be cutting off excess vines to give away or throw on the compost heap. Take care of it and it will be everywhere.

https://philodendronplant.com/heartleaf-philodendron-grow-and-care-tips/