question about changing out computer memory cards?

I have an old laptop with a bad memory card that is (I think) identical to this:

https://www.servers4less.com/memory/laptop/kingsto...

I am confused by a lot of terminology that seems to differentiate these cards in various small ways.  This is often reflected in the naming conventions and numbering of these cards, like one letter changed in the middle or a letter appended onto the end of a number for some cards and not others.

I understand the importance and difference in the amount of memory.  4G, 8G, etc.

I also understand the form factor, i.e., if it will physically fit into the slot.  In this case there are many choices that would fit.

But what about all that other stuff?  SODIMM, Bus type, error correction, etc.  Does it matter?

I only want my computer to function.  I don't need blazing speed.  I just need it to boot up and work, and only for a couple of months before I "retire" it forever.  And I don't want to spend a ton of money.

Will ANY card that fits in the slot accomplish this?

Are there cards that look right but some feature or aspect will make them completely unusable?

I hope it's clear what I'm asking, and what I really need from this question.

Thank you!