Can TE effect some areas more than others?

Yes, this can happen.  I recommend getting a formal evaluation with a hair loss expert to go over your condition and advise you on best treatment options. There are great non-invasive options like prp/progesterone and/or hair transplantation. See an expert. Best, Dr. Emer

TE also known as Telogen effluvium can be acute or chronic and typically affects the entire scalp diffusely. However, since the back of the head is often more dense than the top and sides, this may seem to be more severe in the tops and sides. 

No, TE is fairly diffuse. If hair loss is coming from certain areas only- other diagnoses should be considered.

TE often is diffuse all over the scalp - but some parts may be affected more than others.  For instance - the top might be more affected than the back and sides, etc.  Minoxidil, light therapies (PBM) and other treatments can all help, by the way.  Good luck!

Telogen effluvium is a generalized problem and should be seen relatively uniformly throughout your scalp hair