The Brightest parts are now at PA 40° & PA 200°. ( PA 0° = North PA 90° = East ). Obvious changes in 3 days.
I block the comets core and used exponential stretching to improve the contrast near the core.

There are no evidence for "cryovolcanic" on this comet BECAUSE there are no evidences for an internal heat source. Spiral structures are not unusual around comets core. ( Example Comet C/2001 Q4 (NEAT), Hyakutake YouTube @ 35min. , C/2020 F3 (NEOWISE), 103P/Hartley 2, Hale Bopp.
No spacecrafts have ever imaged comets with volcanoes.
According to NASA scientists : Cryo or other volcanoes occur on Jupiters moon Io and the Saturn moon Enceladus which both have internal heat sources.
NASA’s Rosaly Lopes and the U.S. Geological Survey’s Astrogeology Science Center’s Randy Kirk explain the phenomenon of cryovolcanism.

Spaceweather say : Evidence is mounting that 12P is "cryovolcanic."
Please come with ONE evidence ( Show us the best one ).

Sun distance (au): 1,08 Perihel : 21.April 2024 Sun distance (au): 0,78

Time: 18:50UT 2024-03-11 Exp.100 x 7sec
Tel: 0.254m f/7.3 ST-10XME CCD 2x2bin 1.5"/pix
Odd Trondal Obs.code 238 (Uranium). Oslo Norway.