I use it almost exclusively on Linux. It was much worse just 9 months ago. I do close and reopen it every week or so, it reopens all my tabs per my config, and it never gets sluggish on me if I do that. I agree with commenter above. I prefer it, with its flaws, because of configurability. It's been 6 months since I ahve been forced to open a site in Chromium. It tends to be some bloated highly commercial (F500) site that requires that.