Focus — Canon 5d Mark Iv
To fine-tune performance for specific action types, use the found in the first AF menu tab: Case 1 : Versatile multi-purpose setting.
When you half-press the shutter, the camera locks focus once and stops. If the subject moves, you lose focus. focus canon 5d mark iv
Pretty sure it's chrome that's built in. Remember having to install Firefox from desktop mode.
Unless something changed recently, Firefox was always built in. They did make it so you have to install it manually a year or so after initially launching, but Chrome was never included.
Firefox is built-in with the desktop mode. I believe when first going to "Non-Steam Games" in Gaming Mode, SteamOS does prompt you to install Chrome as Chrome plays nicer in Gaming Mode.