diff --git a/yt_dlp/YoutubeDL.py b/yt_dlp/YoutubeDL.py
index f6e4a2cce..77008694d 100644
--- a/yt_dlp/YoutubeDL.py
+++ b/yt_dlp/YoutubeDL.py
@@ -1379,11 +1379,13 @@ def _prepare_filename(self, info_dict, *, outtmpl=None, tmpl_type=None):
             if not filename:
                 return None
 
-            trim_file_name = self.params.get('trim_file_name', False)
+            trim_file_name = self.params.get('trim_file_name')
             if trim_file_name:
                 # https://github.com/yt-dlp/yt-dlp/issues/5526#issuecomment-1312783517
                 no_ext, *ext = filename.rsplit('.', info_dict.get('ext', '').count('.') + 1)
-                filename = join_nonempty(no_ext[:trim_file_name], *ext, delim='.')
+                # cut filename and remove trailing spaces and extra dots
+                name = no_ext[:trim_file_name].strip().rstrip('.')
+                filename = join_nonempty(name, *ext, delim='.')
 
             if tmpl_type in ('', 'temp'):
                 final_ext, ext = self.params.get('final_ext'), info_dict.get('ext')
diff --git a/yt_dlp/utils/_utils.py b/yt_dlp/utils/_utils.py
index 302630058..f5552ce80 100644
--- a/yt_dlp/utils/_utils.py
+++ b/yt_dlp/utils/_utils.py
@@ -4733,7 +4733,7 @@ def number_of_digits(number):
 def join_nonempty(*values, delim='-', from_dict=None):
     if from_dict is not None:
         values = (traversal.traverse_obj(from_dict, variadic(v)) for v in values)
-    return delim.join(str(v).strip() for v in values if v)
+    return delim.join(map(str, filter(None, values)))
 
 
 def scale_thumbnails_to_max_format_width(formats, thumbnails, url_width_re):