The problem comes from federation. You never know where your messages are synced to + what will happen if instances are defederated. Matrix might become something really cool, if it spends 1-2 years solely on security. Otherwise... it's just nothing more than an epic (and misleading) name + some IRC legacy vibes.
Vivaldi (or Mozart... whatever) is a joke regarding privacy. IMHO it's not as bad as Opera, Chrome, Edge, but still not good enough. For some privacy, you should always use a VPN service + Hardened Firefox / Brave / LibreWolf.
Can you share what's coming soon from Nightly 👀❓
Matrix is a security nightmare. Everyone should stay clear from it till possible solutions are found for the ongoing concerns.
I'm somewhat stuck with Tidal, since it's included in my mobile services subscription. Glad to hear that there are apps that do feature light mode. Their UX lead clearly has a brain 🧠
Tidal Music. Was on Spotify before that.
After being on Spotify for some years, I switched to Tidal.
Here's a great and beginner-friendly article on the topic of secure (and private) messaging and why Matrix currently doesn't fit there: https://proton.me/blog/whatsapp-alternatives