sudo apt clean
sudo apt autoremove
sudo rm /etc/ssh/ssh*host*\*
cat /etc/machine-id
sudo truncate -s 0 /etc/machine-id
sudo poweroff

Are there different license tiers or editions?

The cellular gateway (MG), camera (MV), and systems manager product lines have one tier: Enterprise.

The switch product line (MS) has two tiers: Enterprise and Advanced licensing (only for select models)

The wireless product line (MR) has two tiers: Enterprise and Advanced/Upgrade (which are described in the Cisco Umbrella Integration document).

The security/SD-WAN appliance product line (MX) has three tiers: Enterprise, Advanced Security, and Secure SD-WAN Plus, which are described in the Meraki MX Security and SD-WAN Licensing document. The virtual appliance (vMX) has three tiers: Small, Medium, and Large.

Meraki Insight (MI) has five tiers: X-Small, Small, Medium, Large, and X-Large. Details can be found in the Meraki Insight Introduction document.