Emojis - I think you mean stickers? Emojis as a set of characters are standardized by Unicode. A friend of mine has sent me stickers she’s taken from photos. Samsung devices also do this within their own ecosystem, but there’s not a frakin’ class about how to do it.

Linux customer service is “uh…there’s a forum somewhere…have you looked there?” People on lemmy hate when I say it, but paid (not free) Claude is actually very adept at troubleshooting Linux issues.