I agree it is a mixing/mastering problem.
-Spread the guitars across the spectrum lot more, they seem to be clumped together just to the left. The double tracked “Chugs” can also be spread, put one far left and the other far right.
It also feels like there’s a gap between the center and the far right, move one of the mid range instruments into that.
-Are the eqs of your different instruments similarly shaped? It sounds like you may have dipped or boosted the same frequencies in different instruments as they are fighting for the same space.
-Are you monitoring on bass heavy monitors or bassy headphones? The mid age is a bit over pronounced, and the low end seems a bit lost on my system.
I hope this helps, I’ve been here myself.
All the best moving forward!