Something curious and I did not mention is the regularity and predictability of the error entry in the log.
Essentially at boot only 2 identical entries appear, just at the end of the journal log for the current boot and after the login session starts. That's when the autostarting of telegram-desktop occurs.
Then the first time a message is sent from telegram-desktop the same line, only replicated 158 times (that's 159 lines in total), are logged. No error entry is logged for received messages