Google Analytics showing a big spike of Linux Chrome users

So I’ve noticed in my August Google Analytics for our Canadian municipal website, Linux Chrome users have gone from 0.25% of our users in June to 10.58% in July and now 26.75% in August.

Any idea what these might be coming from? I was thinking like bots but our total users and page views are around the same as previous months. I was then thinking maybe a new Android update reporting as Linux or something? But they seem to be listed as desktop, not mobile.

Anyone seeing anything similar on their sites, or any other ideas?

August: enter image description here

June: enter image description here