Open any chat or channel containing a video with subtitles/captions.
Start playing the video in portrait mode (vertical orientation) and verify that subtitles are visible at the bottom.
Rotate the device to landscape mode (horizontal orientation) to watch the video in full screen.
Current result
When the screen is rotated to landscape mode, the video scaling becomes too large, causing the subtitles to be cut off or entirely pushed off the screen.
Expected result
The video should scale properly in landscape mode without cutting off the bottom area, ensuring that subtitles remain fully visible. Alternatively, a zoom/aspect-ratio toggle should be available to scale down the video when necessary.
Workaround
Do a slight swipe up gesture while in landscape mode to scale the video correctly.
I am still experiencing this issue on a Redmi Note 15 Pro+ running HyperOS. Videos in landscape mode are automatically zoomed/cropped, causing subtitles near the bottom of the screen to be cut off. The issue is reproducible in the latest Telegram Android app.
I can confirm that this issue is still present on my vivo iQOO 15R running Android 16 / OriginOS 6. In landscape fullscreen mode, the top of the video remains visible, while only the bottom part of the frame is cropped off. A normal upward swipe does not fix it in my case. However, a pinch-to-zoom-out gesture reveals the complete frame, with black empty areas appearing above and on both sides. This indicates that Telegram is applying an incorrect default zoom/cropping mode. Please investigate and fix the landscape video scaling.
In landscape fullscreen mode, the top of the video remains visible, while only the bottom part of the frame is cropped off. A normal upward swipe does not fix it in my case. However, a pinch-to-zoom-out gesture reveals the complete frame, with black empty areas appearing above and on both sides. This indicates that Telegram is applying an incorrect default zoom/cropping mode.
Please investigate and fix the landscape video scaling.