I'm using: Version:92.0.4561.33, System:Windows 10 64-bit, Chromium version:106.0.5249.119. I'm reading the documentation section Features ... Workspaces.
The section of that Workspaces section that explains using the Sidebar setup panel does work. I've set up two workspaces, "Instagram @someuser" and "Facebook general".
But the first two sentences "Your workspaces can be accessed through the workspace icons at the top of your sidebar. Click on the icons to jump between them." don't work. When I click on the icon with a white pentagon in the blue square, nothing happens. The example image shows a white star with a black outline underneath the pentagon; the star doesn't appear, and there's a grey horizontal line in its place:

In the Sidebar Setup panel, I see the names of the two workspaces. But when I click on one of them, it doesn't get a blue background. The first workspace, "Instagram @someuser", has a checkmark in a grey circle at the top right, but I can't click on the checkmark or find a way to make it have a blue circle:

If I Shift-click multiple tabs, then right-click on a tab to open the Tab Context Menu, there's no entry "Move tab to workspace…" Same problem happens if I shift-click on a single tab: there's no menu entry to move the tab to a workspace.
Sliding the big switch next to the large "Workspaces" title off, then on again, doesn't make the workspaces function.
I can use Firefox profiles instead, but they aren't as convenient. What am I doing wrong? Thanks!