It really comes down to apps.
The only flag you mentioned that caught my attention was Word and Word templates. I’ve not tried Word templates.
I figure your options are either Libre Office or something cloud based, eg, Google Docs.
One thing you could try is to set up a VM or boot a live CD (USB) and try on the things that most concern you.
I did that for one neighbour in one apartment complex where we lived. Her laptop sucked ass beforehand.