Custom controls have associated labels
Webflow allows Custom Code, but it is not verified. To test that the custom control is focusable, press the TAB key to navigate through the site.
You can set Focus Style in Style Panel > States drop down.
Google Lighthouse says
Custom interactive controls should be focusable. If you use JavaScript to turn a <div>
into a fancy dropdown, it won't automatically be inserted into the tab order. You need to manually check that all custom controls are keyboard focusable.