Does https://pq.cloudflareresearch.com/ confirm your browser is using X25519MLKEM768?
Are you sure you're using an up to date browser? My server is using TLS 1.3 with x25519mlkem768. Most browsers should support this KEM already.
I sadly haven't tracked precise battery usage for both Signal and Molly, to properly compare. I do believe it easily saves me 10 percent on my daily battery life, though.
Thanks for subscribing! :-)
Of course, Signal will be unlinked when using Molly. Molly however supports multiple devices.