Django Admin - Filter ManyToManyField with through model

How can I filter a queryset inside the Admin page of an object that has a ManyToManyField relation with a manually defined through model?

Given models.py

class Foo(models.Model):
    foo_field1 = models.CharField(max_length=50)

class Main(models.Model):
    main_field1 = models.CharField(max_length=50)
    m2mfield = models.ManyToManyField(Foo, through="FooBar")

class FooBar(models.Model):
    main = models.ForeignKey(Main, on_delete=models.CASCADE)
    foo = models.ForeignKey(Foo, on_delete=models.CASCADE)
    new_field = models.CharField(max_length=50)

Inside admin.py

class M2MInlineAdmin(admin.TabularInline):
    model = Main.m2mfield.through
    extra = 1

class MainAdmin(admin.ModelAdmin):
   inlines = [M2MInlineAdmin,]
   ...

    def formfield_for_manytomany(self, db_field, request, **kwargs):
        print('called formfield_for_manytomany')
        return super().formfield_for_manytomany(db_field, request, **kwargs)

    def get_field_queryset(self, db, db_field, request):
        print('called get_field_queryset')
        return super().get_field_queryset(db, db_field, request)

I try to access both of these methods, but none of them are called if I specify a through table. However, they do get called if the ManyToMany relation is simply defined as like this:

class Main(models.Model):
    main_field1 = models.CharField(max_length=50)
    m2mfield = models.ManyToManyField(Foo)

Is there a method to filter the queryset when a through table is specified (while being able to access the request context)?

from Django Admin - Filter ManyToManyField with through model