My avocado tree looks like there is some bug eating the leaves, however there is no bugs on the plant and it is indoors. It looks like bite marks randomly like how bugs makes
Here are some pictures of the leaves that look like they are being eaten, the stem that looks like something is attacking it, and also the whole picture of the tree.
That looks like scale on the stem but I have never seen scale in real life so don't freak out : ) Just try some neem oil 1-2 table spoon per gallon see if that does anything.