Back around 11 to 12 years ago, I networked my parents home completely to every room except the bathrooms...
I used Cat7A STP cables and upgraded to an extreme gaming router, NetGear 16-port switch where the cable/ modem/ router are set-up, in the office/ computer room there are 3 computer desk with a connection at each one with a NetGear 10-port switch at the 3rd desk where I can run 2 separate setups of 4 different computers running independently or all together using just one keyboard/ mouse/ monitor/ speakers
Each different room (bedrooms, den, living room, dining room and kitchen) have NetGear 5-port switches
That's all my hardwired stuff also with my home server and several NAS devices...like one NAS at my home entertainment center hooked to my TV and stereo/ surround sound system (31 speakers, 3 subs, (1) 1100 watt unit and (2) 500 watt Amp units) ...I am half deaf, so I have to turn it up...hahaha
Last October when I switched providers the technician that came out showed me that I was getting anywhere from 970+ Mbps upwards of 1.2 Gbps connected speed going into the modem
All the network wiring (Cat7A STP) is 10 Gbps capable as well as my 16 and 10 port switches, the other (6) 5-port switches are 1 Gbps capable.... your speed is only as fast as your slowest component..
My speed is right around the 1 Gbps range (well was the last time I checked...been almost a year on this free internet stuff, that I qualified for because of having full VA benefits...seems like they are wanting to start charging me now..got to get that sorted out heh..)
Sometimes my connection shows me steady around 32/34 ms...then at times it shows me steady at 60 ms.... I have even seen it steady at 24 ms.... it all depends on time of day pretty much... variance in game is always pretty much flat line and if your connection or even the game itself has a hiccup it will show up on the variance in-game...if it's the game, you'll know quickly because everyone will start texting/ talking about it...if you see it and no one else mentions it 😉 then it's on your end...
I recommend people try testmy.net for testing all your internet connections and speed stuff... you can register and join and log / keep logs of all your testing etc... it even allows you to set it up for each separate internet connection/ room etc... I recommend reading up on the different articles and there is a lot of available information on the forums
That's my connection, home setup, etc... I seriously suggest checking out testmy.net I've been using it for over 15+ years or so...
Cheers 🍻
TC