My Debian trixie desktop system rotates /var/log/apt/history once a month. So over the past year:

$ zgrep upgrade /var/log/apt/history.log*gz|wc -l
25
$ ls /var/log/apt/history.log*gz|wc -l
12
$

25 upgrades in 12 months. So about twice a month on average on that one.