Why no First Order Ambisonics with Head-Locked Stereo audio option in Premiere Pro?

I make 360 video. I experiemented with several video editors and I have to say Premiere pro handled and rendered it much better than anything else I tried, brilliant ...except fror one major flaw. Like most people I aim to post my videos on youtube. Youtube have an option of First Order Ambisonics with Head-Locked Stereo, Why can't premiere pro do this, It can do First Order Ambisonics but can't do it with Head-Locked Stereo. Adobe at very least should be fulfilling best options for posting on youtube, it shouldn't come in as failing compared to others. I want ambisonics gor effects but not on the main part of my main audio, I want that fixed. Anyone offer any solutions? I've seen one YT video but it was stupid fliddly and I didn't get it to work. Any idea when Premiere will actually catch up with others on this please?