Got a TPLink AX3000 specifically for the Pico. Turned off 2.4 GHz. Channel width 80Mhz. Constant Mbps between 900-1200. No stutters in Beat Saber again. High recommendation. 65 Euros on Amazon. : r/PicoXR
TP-Link Archer AC1900 Dual-Band Wi-Fi 5 Router Black ARCHER C90 - Best Buy
Amazon.com: TP-Link AC1900 Smart Wireless Router - Beamforming Dual Band Gigabit WiFi Internet Routers for Home, High Speed, Long Range, Ideal for Gaming (Archer C9) : Electronics