I've my Last.fm account since 2010, but nowadays I'm also scrobbling to https://listenbrainz.org/ as a backup in case Last.fm dies.
I also aim to make my own scrobbler/stats independently from ListenBrainz and Last.fm, taking inspiration from https://coryd.dev/posts/2024/tracking-the-music-i-listen-to and https://sive.rs/ti