Sure, 1GbE is "plenty." Then you upgrade your Internet and the download speed is ~1.4Gbps so you figure you might as well upgrade everything on the network to 2.5GbE. Then you build a NAS that is capable of fast read/write speeds but you...
WiFi is way behind cabled ethernet. My 10yo rig does this:
And yeah, there's some fiber and SFP+ modules involved. The real point here is if you just want speed WiFi can't touch cheap server pulls from eBay and some cables.