@Angeg28 any wifi source should be out in the open not hidden away to be "neat" that is basic physics.. Doorbells are often difficult as wifi dignals dont travel well through external walls. If yiur Q boxesxare losing connection Sky will supply boosters orcsend out an engineer uf you ask.
If you have Sky Q boxes you already have a mesh network as each Sky box acts as a wifi node. Adding a second wifi system can cause more issues as the two mesh systems are almost certainly going to interfere one with the other. You could turn off all of the WiFi on every Sky box but then you need to hard wire the Q boxes. While you can connect the main Q box to a third party wifi system the Q minis will still need the Sky wifi. I would try to optimise your Sky system or switch away from Sky Q to Sky Stream which is far easier to network.
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65inch Sky Glass, 3 Sky Streaming Pucks, Sky Ultrafast + and Sky SR213(white Wifi Max hub) main Wifi from 3 TP-Link Deco M4 units in access point mode
