I finally decided to build my stand for my PI4 + graphic tablet (recycling it), I will be able to use it properly now.

I finally decided to buy an MTK HAP AX2 after like 3 months of thinking about building a real but also usable network with my second phone as a hotspot. I'm still searching for a good compromise on the ISP side to connect myself to the internet and have fiber, maybe in 4 years I will find something I like.