How can I hide quick actions bar (in the attachment) when I’m typing text with my Magic Keyboard?

Hello sholokhovich,

Thanks for reaching out to Apple Support Communities. We see you have some questions about your iPad, and hiding the Quick Actions bar, and we'd like to help. The following link can help with how to adjust settings with your external keyboard: Use shortcuts on an Apple external keyboard with iPad - Apple Support

This may help with what you're seeing:

Use the Shortcuts bar to accept suggested words and spellings

While typing, you can do the following:

* Accept a suggested word by tapping it in the Shortcuts bar.

* Accept a suggestion highlighted in the Shortcuts bar by entering a space or punctuation. (If you enter a comma, period, or other punctuation after entering a space to accept a suggestion, the space is deleted.)

* Reject the suggestions by tapping your original word (shown with quotation marks in the Shortcuts bar).

To turn off the suggestions, go to Settings  > General > Keyboard, then turn off Predictive Text.

Regards.