OK, I can see that the telephoto lens would be useful for shooting objects that are far away, like the wildlife shots. Not going to get that shot of the bald eagle without telephoto. The example of kids in the choir and the detail inside the Orpheum Theater is nice. However, could not the same shots of the kids in the choir and the theater have been achieved by a normal shot, then going into Photoshop and cropping the areas you wanted to "zoom in on" to say, a 1280x960 image? I do this all the time with my 5a and it works fairly well.
Now, admittedly it wouldn't be *quite* as good as the telephoto shot, but $300 better? (The price difference between 6 Pro and 6) This is my dilemma.
Sure. But the quality will not be there.
However, to be honest; most camera phone photos are not printed at 12x18 for display on walls, they are designed to be sent to friends family and are used to replace the old slide show from decades ago.
Some of the newer sensors most likely allow for larger enlargements and prints, but in reality how many really are enlarged and printed. I have never taken one of my cell phone photos and enlarged digitally on my computer and attempted to print out with standard software so not sure what I would get. Maybe I'll try it...someday.
And the shots I posted, other than the Moose, were shot with some very expensive and quite heavy camera equipment; posted just to show how important a telephoto would be if shooting wildlife and for photo that might be enlarged for wall hanging.
If you feel that digitally enhanced close up shots are all that you will need, then the $300 extra is an important issue. You look at that photo of the 20x shot of the moon, it is very impressive for a cell phone camera. True he is using the zoom lens, but it is only 4X optical, the rest is magic.
What you need is someone to post some telephotos shots from a Pixel 6 without the tele lens.
I used to keep one of my Nikons with an 80-200 lens sitting by the back sliding door to catch shots of wildlife out my back door, but somewhere in time it was relegated back to the bag, and I just use my 4XL to catch photos of the Moose tearing up my trees. No doubt the phone is so much more convenient; especially as a person gets older.
So, don't forget convenience of shooting and getting the tele shot you want or shooting and then having to manipulate the photo to get the shot you want. The shot you want at that time the photo was taken is the one you can immediately send to the friends and family; the one you download and manipulate via PS or other software is the one that will be sent later and in some cases, sit on the computer and never sent. Just saying....