Just use the following CSS code to solve the issue:
@media screen and (max-width:1024px){
#wpd-bubble-wrapper{
left: auto !important;
}
}
Put the code in the Top Admin Bar > Customize > Additional CSS > "Additional CSS" textarea, save it, delete all caches and check again.
Please don't forget to press Ctrl+F5 (twice) on the frontend before checking.
Also, please try on incognito mode if you're checking on mobile devices. Because mobile browsers have a hard cache, you'll not be able to see the change immediately.
In case you want to say thank you! 🙂 We'd really appreciate if you leave a good review on the plugin page. This is the best way to say thank you to this project and the support team.