My S21 ultra is installing the last security update as I type. I have a different view of the EOL dilemma than most. Though I am sorry that the phone is losing it's support, I'm also relieved. It wasn't long after I purchased the phone that an update, likely an OS, caused a communication error between the phone and my hearing aids. With the BLE randomly dropping connections, I would often miss calls and texts with the phone thinking it was connected to the aids when it wasn't. If I anticipated a call or received a call, I would turn my aids off so I could communicate without losing the connection. It was a nightmare until I recently purchased new aids. The EOL gives me clear sailing until the phone struggles with app updates or simply dies.