They are still good, arm is awesome. i have Pi4 as OpenMediaVault and docker/homeassistant, etc. Friend gave me a Pi2 surprisingly OMV6 installs on it (even though it ia technically not supported), that one became a PiHole. My 13 year old iomega arm NAS just got converted to a debian minidlna server. Uses 20% of the 256MB RAM.