Upgrading SSD in elitedesk g2 800 - eviltoast

Okay so im planning to buy a new m2 ssd for my elitedesk. I got a 256 gb m2 ssd today but it’s starting to fill up.

But I’m wondering if I just can get a new one and transfer everything from the old ssd to the new one?

I’m using proxmox now. Is there anything I need to consider?