Yes, there is a quality issue with that bolt. I know several FM936 riders whose upper shock bolts were bent, including myself.
Replaced it with this one (40 mm).

My FM936 build. 10,35 kg without pedals. Pretty light regarding it has a dropper post.

Wow, nice!
I like the clean look. It is a bit disturbed by the wheelset's decals. Maybe consider they are still recognisable without labels

My recommendation would be XL, but i'm a fan of stretched seating positions
What is TT length, reach and stem length of your current bike and how do you feel with it? I went good with comparing to existing material.

Are you all having a Torx 30 axle at the rear ?
This is hardly available on a multi-tool.
It kind of works with a Hex 6 but won't last...
Or maybe it is designed for something like this: https://soshanger.com/148x12x10-T30-Rear-axle-SCOTT ?

If someone changed their axle, could you share the reference ?

My frame came with a Hex 6 Axle. Definitely no Torx.
In case you need it, marking is: 180 mm M12 * P1.5 * L16.5

When removing the wheel, the derailleur hanger moves down although tightened.
And needs to be moved up to allow the axle to reach the nut through it.
Anyone noted this trouble ?

Nope, no movement on my derailleur hanger.

Wow. I really like that color!
I had a hard time deciding between red and green. Once i saw my red frame, i fell in love... but your frame color makes me think about it again...
Nevermind, i love my bike and yours will also be adorable.

Here is my build

Nice!
I'm curious to see your parts list. So i can figure out what makes mine that much heavier (11,5 kg)  .

I had the first ride on my favourite trails

For my feeling, the rear is quite bumpy. But i'm not used to full suspension, so it might be relatively normal. I'm about 86 kg plus camelback and have 300 PSI in the rear shock.

Compared to my hardtail with 640 mm toptube (now 664) and 70° head tube (now 66), it feels much safer in descends. I'm an unconfident rider in descends and i'd say, changing to this bike gives an equal advantage like switching from 26" to 29" ten years ago.
On paveways, you just notice that you can actually see your front hub in front of your handlebar - and you ride just as usual, nothing has changed. I don't really feel slower on even grounds or uphill than before.
So i personally got what i wanted: A fast marathon bike wich gives me some extra confidence in descends.

But i think, this depends a lot on your build. When using trail bike tires, fork and weights, you should not compare uphill performance with a marathon bike.

I called it "dark candy red" and sent Adam this picture as reference. After two days, he sent me a picture of a test piece to confirm.
Yes, the result is a bit lighter as expected, but i'm totally fine with it.