Select default emoji font

Hello!
I’m trying to understand how fonts work on GNU/Linux (specifically Bazzite), as I want to change the default emoji font.

This is the font I went with: GitHub - samuelngs/apple-emoji-linux: Brings Apple's vibrant emojis to your Linux experience
As indicated, I copied the TTF file to ~/.local/share/fonts/.

However, after rebuilding the font cache, the default emoji font hasn’t changed. The Emoji Selector app still uses the Noto Color Emoji font. Is there a way to change the font order?

I managed to manually choose the emoji font Firefox uses with the font.name-list.emoji setting in about:config, but that’s about it.

Thanks in advance!