I’m really thankful for your answer.
My main concern about the switch is that it won’t work with my bulb because it’s not listed in the supported products (but I can’t find the official list). I have a smart bulb rgb v2 (from like 2018-2019). In the forum thread (link) and the site that it mentions they say it will work with Yeelight 1S bulb so at the worst case scenario I would just need to buy another bulb.
Forum thread: SlisaON and flex Switch
Regarding the Aqara hub - I have a WiFi bulb so it wouldn’t matter. (But yes, I didn’t really check the capabilities of the M1S, and in the future if I would need something with Bluetooth I would need to buy another hub. I guess Xiaomi gateway 3 would be more futureproof)