To charge a device, you simply look at the device IN port requirement and the charger/powerbank OUT port ability (both of which are usually printed on the devices themselves).

It does not matter which type of connection (USB-A, Micro-USB, USB-B, USB-C etc.) is used for the IN and OUT ports.

The Amperage (usually 1A, 2.1A, 2.4A, 3A) simply determines how long it takes to charge a device. Of course, a 3A charger will charge way faster than a 1A one.

Nearly all devices require 5V, 9V, 12V or 20V to be charged.

Then, you simply use the charger/powerbank which is able to deliver 5V, 9V, 12V or 20V of power OUT and match them accordingly.

Take note that not all USB-C ports can be used as an IN port.

The setup will not charge the laptop because USB-A delivers only 5V of power, while all laptops in the market require at least 12V of power.

If your solar charger has a port which can output 12V to 20V - usually a USB-C Power Delivery (PD) port - then, yes, you can use it to charge the laptop.

Hope that helps!