You can buy a cable that will allow charging at a higher rate whilst using link. https://www.amazon.co.uk/dp/B0BRQHN5MY?psc=1&ref=ppx_yo2ov_dt_b_product_details
I used it for a while and it seems to keep the quest 3 topped up. I have since swapped to Airlink using a bobovr m3 pro headstrap with 3 batteries.