You can try Gingerblue 6.2.0 with Evolution email attaching in the Broadcast step in the GTK+/GNOME wizard available from https://www.gingerblue.org/ and https://wiki.gnome.org/Apps/Gingerblue
Gingerblue 6.2.0 provides a link in the final GtkAssistant Broadcast page that launch Evolution or another email program that supports mailto:?attachment=localOggVorbisRecording.ogg application handler in GNOME 43. The syntax mailto:?attachment is not yet a RFC and it
is only supported by Evolution 3.44 as far as I have tested, the default email client on GNOME 43.
With a Focusrite Scarlett 2i2 USB Sound Card and a AKG 3000b large diagraph microphone and a XLR microphone cable, it is possible to record and email voice messages and hopefully some music as part of my studies as Location Recording student at Norwegian Academy of Music and Bachelor student in Programming at Norwegian University of Science and Technology (NTNU) from GNOME 42.
You can hear a voice recording of my voice recorded with Gingerblue 6.2.0 at my blog at https://blog.oleaamot.no/ with examples of my music recorded with Gingerblue.
Gingerblue 6.2.0 is available as source code from https://download.gnome.org/sources/gingerblue/6.2/gingerblue-6.2.0.tar.xz, as well as source package in MacPorts at https://ports.macports.org/port/gingerblue/details/ and Fedora Core 36 by running
sudo dnf install https://www.gingerblue.org/~ole/fedora/RPMS/x86_64/gingerblue-6.2.0-1.fc36.x86_64.rpm