[extractor/vimeo:user] Fix _VALID_URL

Closes #4758

yt_dlp/extractor/vimeo.py

@@ -1131,7 +1131,7 @@ class VimeoChannelIE(VimeoBaseInfoExtractor):
 
 class VimeoUserIE(VimeoChannelIE):
     IE_NAME = 'vimeo:user'
-    _VALID_URL = r'https://vimeo\.com/(?!(?:[0-9]+|watchlater)(?:$|[?#/]))(?P<id>[^/]+)(?:/videos|[#?]|$)'
+    _VALID_URL = r'https://vimeo\.com/(?!(?:[0-9]+|watchlater)(?:$|[?#/]))(?P<id>[^/]+)(?:/videos)?/?(?:$|[?#])'
     _TITLE_RE = r'<a[^>]+?class="user">([^<>]+?)</a>'
     _TESTS = [{
         'url': 'https://vimeo.com/nkistudio/videos',
@@ -1140,6 +1140,9 @@ class VimeoUserIE(VimeoChannelIE):
             'id': 'nkistudio',
         },
         'playlist_mincount': 66,
+    }, {
+        'url': 'https://vimeo.com/nkistudio/',
+        'only_matching': True,
     }]
     _BASE_URL_TEMPL = 'https://vimeo.com/%s'