“Most modern SSDs will have power-on background tasks which monitor how long it has been since a specific NAND block has been written and will actively refresh blocks which are showing higher bit error rates or are near the end of their designed retention period.”
I came across this. Looks like SSDs do actively refresh old blocks when powered on.
TLDR: Power on your SSD at least once a year for maybe an hour to prevent data loss.
u/30rdsIsStandardCap — 22 days ago