CAT7e doesn’t exist, it’s a marketing term for idiots.
*edit* In previous posts you stated your mother had issues with RF, so you only enabled Wi-fi for ‘half the day’ (I won’t ask where she goes that’s RF shielded/has no electricity for the other half) now you don’t believe wireless 5G will do people’s health any good, yet you have Virgin cable, you purchased a router with 2.4/5Ghz and have an Samsung S7 and Xbox as well as a tablet. If I had a relative who lived with me and genuinely suffered as you suggest, i’d literally have built them a faraday cage with no power or data run within several feet.