You are looking for the traditional text log files in /var/log, and they are

gone?

Here's an explanation on what's going on:

You are running a systemd-based OS where traditional syslog has been replaced

with the Journal. The journal stores the same (and more) information as classic

syslog. To make use of the journal and access the collected log data simply

invoke "journalctl", which will output the logs in the identical text-based

format the syslog files in /var/log used to be. For further details, please

refer to journalctl(1).

Alternatively, consider installing one of the traditional syslog

implementations available for your distribution, which will generate the

classic log files for you. Syslog implementations such as syslog-ng or rsyslog

may be installed side-by-side with the journal and will continue to function

the way they always did.

Thank you!

Further reading:

man:journalctl(1)

man:systemd-journald.service(8)

man:journald.conf(5)

https://0pointer.de/blog/projects/the-journal.html