Excel eats up memory like no tomorrow. If you work on huge (really big) Excel file, min is 16 GB ram. 32 GB is better. Working on Excel files exceeding 150 MB size!

Any laptops will/can have issues. Just deal with it. Mostly (from experience) is battery issues. Dell, Acer, Asus, IdeaPad, Legion, HP, Thinkpad, semua more or less same issue. Am now using HP, those cheap ones, parts aplenty and cheap, readily available.