there is a company that sells a product called “game changer” that uses oversized copper for extended cat6 runs.
Paige Datacom connects your security, fire, access control, audiovisual, signage, high voltage, irrigation, asset protection, and structured cabling systems with the highest-performing solutions in the industry for both enterprise and data center markets.
paigedatacom.com
not affiliated with them, but a customer of mine used them and sang their praises. for what it’s worth.