Debian 10 and missing GLIBC_2.29 version

Error message when launching:
Failed to load /opt/libreoffice/instdir/program/libmergedlo.so: /lib/x86_64-linux-gnu/libm.so.6: version `GLIBC_2.29’ not found (required by /opt/libreoffice/instdir/program/libmergedlo.so)
Failed to preinit lokit.

Any hint about a possible resolution? The installation steps were taken from Build Collabora Online | Collabora Online - Community Page, following the Ubuntu instructions.