Can I run a secret node on Ext4 or is LVM or ZFS compulsory?

I am pretty new to Ubuntu Servers and cant get my head around LVM.

I have a laptop that meets the recommended requirements already running Zonin 16 (Ubuntu distro) but would prefer not to trash what I have on it and start again.

Is running a node without LVM or ZFS possible?

You can use any filesystem that is supported by an os that works with sgx drivers.

How you getting on? You can use your laptop for testnet, if no SGX Secure Enclave (as its emulated)