The LinkUp cable @soix mentioned is an excellent cable. I am running a 50FT length from my modem to a switch near my streamer. The 50FT cable eliminated the mesh network. Should you choose to try LinkUp cable, I want you to be aware the 22AWG version is quite stiff, so no sharp bends. Instead, consider LinkUp 26AWG version, which is much from flexible.
Value of a premium Ethernet cable
In my current setup, digital music from a Roon ROCK NUC server travels through an Uptone Audio EtherRegen and a short link of fiber, thence to a long stretch of ordinary contractor-grade Cat 5a cable, and finally to a dCS Bartók streaming DAC.
At substantial effort and expense, I could rearrange things so the final length of Ethernet would be replaced by a single run of something like an Audioquest Vodka Ethernet cable. I'm wondering if anyone has experience of whether this is worth the trouble and expense. Well mostly the expense; the "trouble" is the hobby part of it.