Bad practice for dropdowns to cover buttons?

I have a text field that shows matches in a dropdown when the user starts typing. Below the field are buttons. When the dropdown is activated it covers the buttons. However the dropdown will go away before the user will need to select the …
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How to present six or more options in a card / modal on mobile screen (to abort an order)

I am working on an app which is used by workers to complete an order within a fixed/ closed process. Since the process is closed until the order is finished, workers need the option to abort in case they run into serious issues (e.g. accid…
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Best Practice for Product Filtering Menus

I have implemented a horizontal Filtering bar based on articles posted by Baymard. Link Here
I revised my original concept to be a more standard dropdown however the Client has come back and requested a Filter mega menu. I have a good feel…
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Hide already selected options in the dropdown

In the case of a multi-select field, I would like to know the best practice:
Hide the choices that have already been selected (the list gets smaller as you go along)
Leave the choices already selected with a "selected" status
…
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Dropdown menu width best practice

Issue:
When creating a dropdown menu for options, I came across a question from the developers about how it should respond. Should it have a fixed width, or expand with the content?
We will have data with varying length appearing as menu i…