FieryFeeds extension issue

The much liked iOS FieryFeeds rss reader and read-it-later service will soon launch on macOS (Catalina). However, the developer pointed out that he is only making FieryFeeds extensions for Safari and Opera (and not for Chrome, and therefore Brave) because “Chrome can’t be bothered to properly support system features, like system-wide sharing” and “philosophically [he doesn’t] want to support that”.

Is that indeed an issue for Chromium or only for Chrome? Can we ask you to do something about it?

(It seems that a bookmarklet can be written easily as a full featured URL scheme will be available)