That's worrying about your router's upgrade failure. Netgear have been fine for me so far, aside from the avaricious nature of their support and service add-ons.
I have a Netgear Orbi mesh system, and it’s very reliable. The router has an ethernet cable to the ISP-supplied fibre modem, and I have more bandwidth than my entire street could make use of. The Orbi uses a dedicated 5Ghz backhaul to an Orbi satellite in my lounge which is physically connected to my streamer. The satellite has an iFi iPower Elite powering it. I can’t tell if this makes a huge difference, but some things are simply required if only to eliminate a possible source of noise.
Some would argue for ditching the wifi backhaul and therefore remove a source of noise. But, in reality, if have to use it.
No dropouts at all. Quite often the Innuos app struggles to find the server - cause unknown.
I have a decent ethernet cable on order (SotM). And hope to trial a decent fiber bridge, and the EtherRegen (or replacement)