As a fellow Futo user: it’s not great out of the box. My biggest recommendations are:

• under Languages and models, download all the voice models (if you use those), transformers, and wordlists you can for your languages
• if you use multiple languages, set the check on “multilingual typing” for ALL of those languages
• this is probably the biggest one: in text prediction -> Advanced Parameters, DRASTICALLY change the values. The original ones are 3.4 and 4.0 for LLM strength and autocorrect threshold, mine are currently set at 28.5 and 0.8, respectively. This takes the autocorrect from “occasionally working” to “as good as SwiftKey” for me.
• Keyboard and Typing -> Long Press -> Show hints. Could not find that for ages so thought I’d add it here.

Also, two super useful shortcuts: you can press the space-bar and move your finger around to move the pointer; and the same for backspace to fine-control what to delete.

Hope this helps, but if not… What additional gripes do you habe with it?