I have an upfront paid Chrome extension, and I asked these questions here a couple of weeks ago, but I've received no response yet.
1) What happens to published upfront paid Chrome extensions on February 21, 2021?
2) If a published upfront paid Chrome extension is unpublished, what happens for the customers who already paid? Can they still install the extension from the Chrome Web Store if necessary?
3) After February 21, 2021, is it possible to provide updates to upfront paid Chrome extensions for previous customers?
Unfortunately, Google has provided almost no information or help so far to extension developers in preparation for this huge change.