@Vraze See Connection Preference: Customize Your Preferred Signal Source

@shabiu Deco M5 is WiFi5. You can't get more than 600-650Mbps from WiFi5 capable mesh. To get speeds closer to gigabit, you will need to replace all your Deco M5 with WiFi6, WiFi6E or WiFi7 capable...

@MalaIRL TP-Link offers Deco X50 and Deco X55 - both models have similar specs, but if both available in your region, at least on Amazon their prices could differ substantially. Check prices for both...

@Cazza1 Deco M9 Plus is tri-band and more powerful in hardware and WiFi signal than M5. I have both models, tested them extensively. When you do daisy chain Office<->Library<->Kitchen with M9 Plus,...

@Shafiul_1112 If you bring laptop to Main Deco and connect laptop with Ethernet cable to the second port of Main Deco, will laptop connect via Ethernet?

@Cazza1 Congrats! You now have up to date Deco WiFi mesh, with a set of new useful features. Among them, I recommend you take a look at the following: Connection Preference: Customize Your Preferred...