You could sell it for way too much on ebay, those M1 Macbooks are still worth a fair bit. I recently tried to get a water damaged M1 Pro Macbook and people outbid me like crazy; went for 150€ in the end despite being almost certainly a total dud.
Even ones without a working display go for 170€, which is far more than I'd pay for a fully working non-workstation laptop from that time...
Edit: Just looked at the listing again and the water damaged M1 Pro went for 234€. According to the listing it sat around for 2 years after it stopped working from water damage. 234€.