On Wed, 21 Feb 2018 19:00:23 wrote:

beat up and I don't feel like stripping/filling it.) The problem is
that the bottom 1/4"+ is behind the luan/linoleum so it has to come
up then out.

leave the bit behind the linoleum in place
just cut horizontal

then install new trim above that

if the linoleum is glued to that trim then you open a can of worms
when you damage the linoleum