M1 mac, is filevault needed?

From the article: Built-in Mac SSD Encryption Is Easily Bypassed by an Attacker With Physical Access if Filevault Isn’t Enabled

And, a different opinion: unless you live in a neighborhood where break ins are "normal", I am hoping that my iMac does not have a high chance of being stolen as they'd have to get into our house first and then find it. It is also not as easy to carry as a laptop and they'd have to figure out all the cords, etc. So, sticking with that hopeful outlook, I've not used filevault. I've got a good login password and 2FA, so by the time the thieves are in my records/files, I will have had time to lock it and/or erase it. I've got bootable clones = I'll just need a replacement to clone the system to and I'll be back up running.

While I find this hard to believe

What is hard to believe?

All Macs since about 2018 are encrypted with the T2 chip (or maybe something beyond that), but they are automatically decrypted when you boot up. The only thing that would protect from is if they pull out the drive.

If you need to secure it, turn on FileVault. That will require you to enter your login credentials to decrypt the drive.

Nothing about the encryption changes, just the way in which it is decrypted.

at any rate, it protects only if people get hands-on your device physically, all trojan and the malware and the likes have your user rights so access all your data decrypted.