Have you thought about using powerline devices? I’ve successfully used them in place where running my own cable wasn’t a possibility, and WiFi wasn’t cutting it.
Powerline is in my experience vastly worse than WiFi in nearly all cases. It's slow, suffers from bad jitter/interference (often worse than WiFi) and the chips run so hot (especially the last gen ones, AV2000 iirc - I believe they don't sell them any more because they overheat and fail, or at least 2/2 of the ones I had did this).
Even with many walls I was getting 300-400mbit/sec on WiFi vs 100mbit/sec on powerline.
Powerline in practice does not come anywhere near performance of a good WiFI7 setup - even through walls WiFi tends to be more stable and faster outside special conditions (e.g. multiple floors or thick walls).
Even with many walls I was getting 300-400mbit/sec on WiFi vs 100mbit/sec on powerline.