FreeBSD Project-packaged Chromium 125.0.6422.76 will default to PulseAudio, if PulseAudio is enabled.
Please test 125.0.6422.76 or greater with FreeBSD 14.1-BETA3 or a release candidate. 14.1 includes significant improvements to audio (release notes are not yet complete).
<https://github.com/freebsd/freebsd-ports/commit/6acad34cb2bc3b858f64724620fd3c11b2a602f3>
<https://www.freshports.org/www/chromium/#history>