I want to recreate this effect? Any idea how?
That’s a lot of large, bright reverb.
With Audacity’s Reverb effect (https://manual.audacityteam.org/man/reverb.html):
Set Room Size, Reverberance, Tone High and Wet Gain quite high,
Set Damping, Tone Low and Dry Gain quite low.
Use “Preview” and tweak the settings to find what you like best.