Facebook reels custom filters don't work on mobile (but work well on desktop)

Hi,

In my Brave browser → Menu → Settings → Shields → Content filters → Filter Lists → Custom Filters, I entered these elements to block Facebook reels and sponsored posts.

! Post with single Reel (language independent)
facebook.com##:is([aria-posinset],[aria-describedby]:not([aria-posinset])) video ~ div[data-instancekey]:upward([aria-posinset],[aria-describedby]:not([aria-posinset]))
www.facebook.com##:is([aria-posinset],[aria-describedby]:not([aria-posinset])) video ~ div[data-instancekey]:upward([aria-posinset],[aria-describedby]:not([aria-posinset]))

! Reels and short videos 
facebook.com##:is([aria-posinset],[aria-describedby]:not([aria-posinset])) [href="/reel/?s=ifu_see_more"]:upward([aria-posinset],[aria-describedby]:not([aria-posinset]))
www.facebook.com##:is([aria-posinset],[aria-describedby]:not([aria-posinset])) [href="/reel/?s=ifu_see_more"]:upward([aria-posinset],[aria-describedby]:not([aria-posinset]))

! Hide side pannel sponsored posts
facebook.com##div[role="complementary"]
www.facebook.com##div[role="complementary"]

It works like a charm on my Brave desktop browser. Reels and sponsored posts are finally gone on my facebook page, yay!

I copied the same custom filters on my Brave Android app (version 1.68.137, Chromium 127.0.6533.100).

Expected result: when I visit the facebook website on my Brave mobile browser, I would like the reels and sponsored posts to be hidden.

Unfortunately, they still appear.

What am I missing?

Thank you so much!

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