These are all looking like they are becoming good replacements. However, they will have to beat the challenge of adapting to the sudden high influx of users when none of them are fully ready:

Fluxer.app (Open Beta)

GaneVox (Open Beta)

Spacebar.chat (Open Beta)

Stoat (Open Beta)

CachyOS with KDE setting is less bold. But still bold for casuals.

Vivaldi is closed source “we pinky promise” proprietary software?

Yes. Its feedback of the pressure upon your eye. Your brain needs to interpret but nerves will be wonky when eyeball is pushed.

Nicotine+ has the most efficient UI! I Hella like it