I remember a gmail outage circa 2008 where they said they were restoring from tape, and people found the idea comically retrograde even back then. But I started at a company with large Commvault tape archives in 2011 and they mentioned that it was just more economical at scale for the workload (the backup team had some sweet gear that was apparently purchased with a kickback program on their LTO(4?) tape purchases; perhaps that assisted the engineering decisions) . However, by the end of that decade, they had migrated to mostly using large drive arrays with tape used only for offsite, so my impression was that tape was indeed a shrinking, niche method of data storage.