If you think of installing it onto HDD/SSD/NVME, then never since a few years. I'm booting it into RAM from USB-Keychain or SD-Card, do updates in RAM, and occ

If you think of installing it onto HDD/SSD/NVME, then never since a few years. I'm booting it into RAM from USB-Keychain or SD-Card, do updates in RAM, and occassionally 'remaster' that back onto the (removable) boot media. Benefits: everything is always f...ing FAST! Disadvantages: limited by available RAM. Starts being practical with 8GB, where 'OS' can take anything from about 700MB to 1.8GB, depending on my needs. Good for uptimes of 3 to 4 months on 'Desktop', after that a kernel-update seems prudent anyways. Anything else can be handled by stopping everything and logging out, then logging back in. Takes a minute, or so. Spoken from Antix- & MX-Linux.