Some things do not fit together here. The egg-laying, milk-bearing woolly sow has not found its way into the shop shelfs until today. So, we need plan B.
I’m just 
out loud
- Keep this thiny laptop and/or get a used one for your parents to carry around.
- Get a desktop computer which fits your budget. The recently launched Ryzen CPUs seem to be interesting from budget/performance point of view. Linux support must be checked for the motherboards as they are quite new. Getting a desktop would also offer the possibility to add a GPU later. GPU wise I would not start below a GTX 1660 or the older GTX 1060. Especially, profiled denoise NLM tears down slower cards while editing.
btw. I would freak out on an Acer V3-372. 13" with darktable and RAW editing. 