Questions about Keychron Q1 Max

Hello, the photo shows the Banana switch but the description talks about the Gateron Jupiter Red. Which one is fitted to this model?

I bought this keyboard a year ago and am very happy with the keyboard itself. However, I absolutely do not recommend the Gaeteron red switches. These are very error-prone and stop working after a while. I have already had six switches fail. You can read about the same problem from other users on various forums. It can be "fixed" by simply replacing the important keys with the unimportant ones (e.g. F keys). The "defective" switch is then on a less relevant key. I recommend either using the Banana directly or replacing all the keys straight away. I previously had a Filco with Cherry Red (over 14 years) and not a single switch failed. Gateron doesn't seem to me to be good quality.

it does say in the "key layout", "Switzerland (QWERTZ)". Does this mean Swiss French/German? Because I've tried both layouts to activate the @ key on the keyboard, but this same keyboard doesn't have the @ logo on it. Even that doesn't work, and there are plenty of tutorials on the "Keychron Q1 Max" in English.

How do I activate the Alt Gr + G key combination on this type of mechanical keyboard? Because if you've noticed, it doesn't have the "arobose" logo (@ was added by simply copying and pasting). Is this a manufacturer's defect? Should I return it to the supplier? I've tried several combinations but it refuses to work.

Hello, Will Banana switches be available again? Thank you in advance.