I don’t have a Librem 5, but I think the squeekboard equivalent is pretty basic version and not particularly usable. Here was an old open issue for squeekboard ( Making sure you're not a bot! ) with a relevant merge by Guido ( Making sure you're not a bot! ).
Note that links to a video by Guido posted to librem.one Guido Günther: "Ever since doing the initial completion support i…" - Librem Social