I’m not sure.
Just to explain, I often keep the cursor on a paragraph I’m reading on the Internet (like people that put their finger on the text of a book they’re reading), hence the fact that the text is partially hidden bothers me a little. It’s not unreadable at all obviously, just a tiny thing that scratches my brain.
Maybe reduce the size a bit, because the reaction bar seems very long to me.
Here’s with a scale of 1 (default):
And a scale of 0.85:
A scale of 0.9 would also work… And here’s without the quick reactions, since most-used reactions are already available in the reaction emoji menu:
Default reaction emoji menu:
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On top of other actions like when we right-click on a message on Discord? But I don’t think it’s particularly convenient if we remove the quick reactions.
But there are also mobile interactions to take into account… 
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