Extra spaces at the start or end of text entered into an exposed filter can cause problems. For example, if you have something with "foo" and you filter for "foo" you'll get the result. But, if you filter for "foo " (note the extra space) you can get into a problem.
Either by default or via an option this should be passed through trim().
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It's likely this issue predates Contrib.social: some issue and comment data are missing.
FWIW, I've been reapplying https://www.drupal.org/project/views/issues/1301746#comment-13170598 🐛 Extra spaces in exposed filters and incorrect results RTBC since 2020. While the last version of Views (for Drupal 7) handles trailing spaces as expected, it does not handle leading spaces.