This post really shows how old I am, because I immediately thought "does anyone actually compose on a mobile device?" The experience is so bad I limit my own mobile compositions to message responses like "k" and "lol".
I wrote this comment on my phone and it was an awful experience 🙃. But hey, at least my keyboard app suggested a silly emoji...
I'll continue to do my "real" writing on my desktop for now. Integration apps like KDEConnect have been enough for me to get by, but they aren't perfect either.