This is in the new Diva version 1.4.6.
I installed the demo, and it also seems to have lower cpu requirements than earlier versions.
The demo version only produces some cracking sound periodically, so this amazing linux synth can be
extensively tested without much pain. Incidentally, when a very long tailed shimmer reverb or diffusion delay
is ending the chain, a really nice ambient white-noise pad continues after the crackle, which might be worth sampling
for pad afficienado's. I was using the new free Solaris reverb, that won this year's KVR developers Challenge.
I suspect the linux-native DragonFly reverbs can do similar. The native Instruments Replika diffusion delay setting is also
a great option
Solaris is well behaved win plugin that scans and works fine in linux Reaper, and win Reaper in wine.
I use a guitar patch with chorus, pitch-shifter, a favorite delay, a long slow phaser, and some tremolo
to taste, and the Solaris reverb, and it's heavenly. The basic guitar patch is a pliny clean from BlueCat's Axiom,
or a Rammfire setup from Guitar Rig 6
https://u-he.com/products/#synths
https://www.adamszabo.com/vstplugins/solaris/
The BlueCat demos fade out the effect periodically, so adequate testing is easy.