Chosen Solution
Does anyone have an idea of whether these keys still have a butterfly mechanism or not and how does the mechanism look like?
If I’m not mistaken the model you have chosen does have the butterfly keyboard design. I know in the 16” pro they changed to an older mechanism design to help stop the issue of faulty keyboards.
Good news! You have the Magic Keyboard (Scissor keyboard) Here’s a good writeup: Hands on: 2020 MacBook Air worth it for new keyboard, lower price