Nintendo Switch Lite - what do you need a microSD card for?

Nintendo Switch Lite - what do you need a microSD card for?

This is an expansion for your storage. Your saves are saved on the switch. So it can quickly be full. If this is the case you get a Micro sd

To save games and games that you buy in the eShop. If you hardly use this, you can also cope with the internal memory.

What for? Just think logically.