Even if you don’t use a sequencer, the sequencer allows you to record video.
https://youtu.be/okfRmZjPxbM
If you specify an Aspect ratio of 2:1, the output image size should be 7680x3840.
If you specify an Aspect ratio of 1:1, the output image size should be 7680x7680 . If you specify 1:1, the picture will contain more pixels.