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NM can crash when resuming from suspend if there is a bluetooth connection configured and a modem is detected. See the upstream bug report:

https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/issues/417

The NM version (1.22) in RHEL 8.2 is affected.

The crash is fixed upstream.

Upstream fix: https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/commit/5c547fdab38c7410e8755412b2940e5aa9b853d8

Unable to reproduce with 8.2. Having Mi A3 phone Bluetooth connection shared and USB GSM modem plugged in I am able to suspend/resume successfully in both 8.2 and 8.3 NM versions. Not sure if the bug report was not Debian specific.
Marking as SanityOnly.

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (NetworkManager bug fix and enhancement update), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2020:4499