08-18 22:03:07.074 12167 12186 I KOReader: Android 12 - S (API 32) - flavor: fdroid
08-18 22:03:07.123 12167 12186 I KOReader:  initializing for device sargo
08-18 22:03:07.123 12167 12186 I KOReader:  framebuffer resolution: {
08-18 22:03:07.123 12167 12186 I KOReader:     ["h"] = 2220,
08-18 22:03:07.123 12167 12186 I KOReader:     ["w"] = 1080,
08-18 22:03:07.123 12167 12186 I KOReader: }
08-18 22:03:07.908 12167 12186 I KOReader:  Loading plugins from directory: plugins
08-18 22:03:08.209 12167 12186 I KOReader:  Loading plugins from directory: /storage/emulated/0/koreader/plugins/

Change setting to "Punch Hole cutout" and reboot.

08-18 22:06:00.069  6894  6919 I KOReader: Android 12 - S (API 32) - flavor: fdroid
08-18 22:06:00.116  6894  6919 I KOReader:  initializing for device sargo
08-18 22:06:00.117  6894  6919 I KOReader:  framebuffer resolution: {
08-18 22:06:00.117  6894  6919 I KOReader:     ["h"] = 2084,
08-18 22:06:00.117  6894  6919 I KOReader:     ["w"] = 1080,
08-18 22:06:00.117  6894  6919 I KOReader: }
08-18 22:06:00.868  6894  6919 I KOReader:  Loading plugins from directory: plugins
08-18 22:06:01.124  6894  6919 I KOReader:  Loading plugins from directory: /storage/emulated/0/koreader/plugins/