Calendar app on MacOS Sequoia won't show calendars in Calendar List pane correctly

I just set up the Calendar app on my MacBook Pro (14-inch, 2021) running the latest version of Sequoia (15.3.1) and the Calendar List on the left is acting buggy and my first few searches here and the greater internet have gotten me nowhere.

I have my iCloud calendar, an Exchange calendar, and four Google Calendars syncing to it. If I quit the app and restart, I can see all my calendars fine and I can click the flippy triangle to expand and collapse each individual list. Until I can't. After opening and closing them a few times, they stop working and the checkbox items for each list are essentially there but in a layer above the main Calendar List. Then sometimes, the whole panel blanks out. Refreshing the calendars doesn't fix it -- only restarting the app. There's no pattern that I can discern in number of clicks, particular calendars, timing, etc.

The silver lining is that all the events are displaying as expected and I can create/modify events on any of them so I'm not losing the critical functionality. But it is something that I would like to have working. Most of the search results I found revolved around corrupted events on specific calendars crashing the app completely but that's not my current experience. There did seem to be a flurry of issues with the Sequoia release last fall around Calendar getting flaky but nothing that matches what I'm seeing.

Has anyone else seen this behavior? If so, did you fix it? I'd prefer to not have to switch apps or go back to viewing them in the browser or not being able to have them all in one view (Google Calendar and Exchange don't play nice with each other and sometimes don't update events in both directions which the Calendar app seems to have solved).

Thanks in advance!