Oculus Fork for 1.18.2?

I know that the oculus fork only has versions for 1.19.2 and 1.16.5 listed on the github page, but I've heard there might be some way to manually make one of those versions work for 1.18.2? I've seen the terms "cherrypicking the commit" used when searching around, but I have no idea what this means. Any idea how I would go about doing this, or if it's even possible?