Any video call participant hears their own echo when on a call with me

[blkeller]

Guidelines

• I have searched searched open and closed issues for duplicates
• I am submitting a bug report for existing functionality that does not work as intended
• This isn't a feature request or a discussion topic

Bug description

When I am on a video call with anyone (or even an audio call with speakerphone activated), the caller hears a very distracting echo of themselves. I do not hear any echo on my end. This occurs even if my volume is at reasonably low levels. I never had this problem before until something changed maybe 4 months ago or so, and now I have this problem all of the time.

I know two other people with the same model phone as me, and when I call either of them on Signal, we both hear our own echoes.

This sounds exactly like a duplicate of issue #13881 except that the make and model of phone involved is different. The fix for that issue was specific to that model phone, and I am wondering if the same fix might need to be applied for my model phone as well.

Screenshots

No response

Device

OnePlus 5 (ro.product.model=ONEPLUS A5000)

Android version

Android 10 (LineageOS 17.1)

Signal version

7.28.4

Link to debug log

https://debuglogs.org/android/7.28.4/69845a1f9744a1ac515c1b346a35e7b75c546e45b21e4c686a14ef3bbad8827c
(Taken right after hanging up from a test video call where the caller heard their own echo.)