– Force-quit the Photos app completely (swipe up from bottom, pause, swipe the Photos card away), then reopen it to force a fresh sync session.
– If still paused, toggle Airplane Mode on/off to reset the Wi-Fi connection, then check Settings > Photos > Cellular Data and ensure “Unlimited Updates” is enabled for Wi‑Fi sync.
Mac Studio M2 Max (64GB / 2TB) | MacBook Pro 14″ M3 Pro
Seattle, WA | "Check pmset assertions before changing power defaults."