The classic arm for ChromeOS is terrible, mostly because they cheaped out on CPU extensions and storage, and memory bandwidth. They mostly repurposed those cheap Android tablet designs that die after a year.
It's a great Chromebook for on the go stuff.
I have a Duet 5 and a Duet 3 (smaller form factor, ideal for reading in bed). I like being able to run most Android programs, and my go-to software suite, Emacs, TeXLive, and various Scheme systems, runs fine on Debian Bookworm. I tried Crouton years ago, did not like it; but Crostini seems to work very well. I rarely notice lag, except sometimes when logging in.
There are some negatives: some Android apps are flaky, and the Linux environment has a few restrictions. And of course the whole requirement to log in with a Google account. But as a daily driver, the device is inexpensive and highly usable.