This grocery store charges a hefty handling fee and asks for a tip when using online ordering.

https://lemmy.ca/post/18773436

This grocery store charges a hefty handling fee and asks for a tip when using online ordering. - Lemmy.ca

Should I also tip the delivery driver, and the person who made the product?

Is $1.43 the complete tax? If so — how is your government financed? All countries I know of add a VAT of ~ 20 %.
Not all items are taxable. An apple isn’t, but a box of cookies is. It depends on what OP bought
Depends on your country. Some just have lower tax rates depending on the item.