The 2018 laptop lacks 1Gbps support. For a suitable dongle, consider alternatives that match your needs.
The 2018 laptop lacks 1Gbps support. For a suitable dongle, consider alternatives that match your needs.
WiFi operates in half-duplex mode, which is typical for most routers unless specified otherwise.
Marketing claims are misleading; even with a powerful 4x4 router and PCIe AIC, you won't reach GbE speeds. Using a dongle will only make things worse due to USB limitations and increased latency.
Though I don't anticipate it being a visible presence at typical distances or behind barriers.