How Quicktime Player 10.5 changes screen recording resolution depending on System Preferences Display Resolution.
QUICKTIME PLAYER
FILE
NEW SCREEN RECORDING ⌃ ⌘ N
MacBook Pro 16” M1 Liquid Retina XDR
1168 x 755 --> 2336 x 1510
1312 x 848 --> 2624 x 1696
1496 x 967 --> 2992 x 1934
1728 x 1117 --> 3456 x 2234
2056 x 1329 --> 3564 x 2304
ProDisplay XDR
1504 x 846 --> 3008 x 1692
1920 x 1080 --> 3840 x 2160
2560 x 1440 --> 4096 x 2304
3008 x 1692 --> 4096 x 2304