@Nik_Scho If you are OK with installing beta firmware to have Connection Preference for M4 V2, check this: https://community.tp-link.com/en/home/forum/topic/649952?replyId=1303500

@shicielo If you are OK with installing beta firmware to configure M4 V2 connect to nearest Deco, check this: https://community.tp-link.com/en/home/forum/topic/649952?replyId=1303500

@diogo_ What options does MEO router support, other than bridge?

@Basquens If second Deco is 3m away from macbook, but behind the wall or other obstacle, connecting macbook to that Deco with Ethernet cable does not make sense. If you can bring second Deco to the...

@Basquens if they are so close to each other, 3m or less, you can connect them both with Ethernet cable.

@Basquens Turn off 2.4GHz band for Main Network in Deco app, that should convince macbook connect over 5GHz to the nearest Deco.