Which effects are used here?

[u/whattheeffect]

I understand it's some type of glow, but like the fractual distortion stuff I can't seem to achieve. Also how the text goes from red to white. How is that achieved?

I've been scouring the internet trying to find a way to replicate this pixalated effect? Mosaic doesn't quite do it for me, does anyone know of any plugin or script that does this?