FYI, a microVM isn't a small VM, nor necessarily one that has been allocated little RAM.
The term comes from the fact that a microVM is launched with Firecracker (a Virtual Machine Monitor), and Firecracker itself, as far as Virtual Machine Monitors go, doesn't consume many resources per VM and can start them relatively fast.
Given this, an 8GB agent VM started with Firecracker would still be a microVM. Firecracker doesn't place restrictions on how much memory you can assign it.
The term comes from the fact that a microVM is launched with Firecracker (a Virtual Machine Monitor), and Firecracker itself, as far as Virtual Machine Monitors go, doesn't consume many resources per VM and can start them relatively fast.
Given this, an 8GB agent VM started with Firecracker would still be a microVM. Firecracker doesn't place restrictions on how much memory you can assign it.