I am from the camp: no dark matter.
And there is a lot of evidence for that.
So here is a long story:

Dark matter filaments are either electrical currents or plasma currents.
We see gigantic plasma currents shoot out from centers of galaxies.
Both have strong magnetic fields which we can measure with the zeeman effect.
So this evidence is already visible.

The initial idea of dark matter is only about the speeds of stars in a galaxy.
Note: It is not missing matter, but missing forces to begin with.
But if we just focus on the rotation-speed of the galaxy, there may be no missing any forces.
The speed of stars moving around in the galaxy approaches a constant speed closer to the outside edge of the galaxy.
Instead of slowing down, what would be expected if each star has an orbit around the center.

But that idea is basically false. Stars do not orbit around the center, but around each other.
The sun orbits another star. That star orbits another one. And in the end they all go around the center.
So as long the chain of orbits is in a similar direction, the rotation-speed would not slow down.
And from mathematics we know that a combination of many orbits can flatten out.
Because that is how one draws a Hilbert-curve
One can get all kinds of Fourier figures,
depending on the period and radius of each cycle.

Additional forces can come from dust, gasses and plasma which are invisible.

There is can also be the side-effect of special relativity.
It has been used to explain magnetic forces from the electric field and speed.
In the same way one can get rotational forces from gravity and speed.

Then there is even electrical charged plasma in space.
Mainstream astronomy pretends plasma in space has magical magnetic properties,
and has no influence at the same time.
But in real-world experiments we see that plasma in space can be isolating, or conduction, depending on many factors.
It also seems much denser than many astronomers think.
A continuous flow of charged particles, like the solar wind or galaxy wind, can charge certain bodies,
creating additional electric or magnetic forces.

All these complex factors together give astronomers the illusion of missing forces.
Which creates a research bias that promotes "dark matter".