Hi. Since we now have turret filters, is it possible to generalize the enemy filters for different factions instead of making them for every level? (https://imgur.com/a/xMtGWWW)
E.g. "Fire Biter Faction" instead of "Fire Biter: Lvl. X" to shoot every enemy from this faction.

Because I'm afraid that the current way may take a toll on UPS or RAM if there are too many turrets, and the lists it creates are rather inconvenient to scroll through.

I don't know a way to make such a filter.
Perhaps you should ask the Factorio developers. If they give the ability to set a filter not by prototype, but by some property, I will add this property to the biter factions

Now you can limit yourself not to all 10 levels, but to three or four, attacking at the current evolution

A small alternative idea could be to pre-create filters by faction and integrate them into the mode as we can now create groups of filters that are shared between players and that can be reused in other places.