Back to the puzzle, I didn't find the solution on the right track, so I couldn't come up with an elegant execution, which was a bit pity.

Me idea for the last step is：
1. Leave a portal on the 90-degree panel, with gel on the upper floor
2. Bounce to the faith plate, pass through the glass angle panel, back to the funnel area
3. Funnel area has more blue gel on the ground(more white surfaces,still can slow down the funnel speed,but peti,then fine.)
4. Remove the cube that controls the funnel ,then pops up and down in the funnel area
5. At the highest point in the air, shoot the white surface of the dropper area and respawn the laser cube
6. Open a portal under your feet as you fall through the air, go through the 90-degree panel and get to the exit.

https://youtu.be/3kE3Em_fnf0

I hate the third cube,even though the puzzle was neatly,precisely and inevitable.Everything falls into its preordained place except me.But consider it as a PETI work,then fine.

In China, we usually use Yin and Yang to express these concepts, where Yin represents the specific shapes and features that can be seen, such as cube, funnel, and fizzler, while Yang represents the invisible parts that exist but cannot be seen with the naked eye, like patterns, principles, mechanisms, and so on. When these two are in balance, it forms a complete puzzle, and a perfect number follows a similar way.

I had a purple square appear in the top left corner of my screen, didn't know you could break portal 2 like that.

@masalt also smallest camerson map

simplest camerson map: