Hi,
Is it possible in Bitwarden to automatically uncheck these boxes when filling out forms?
This was possible in 1Password.
Greetings
Yes, it is in principle possible to do this using custom fields, although it doesn’t always work on all websites. First, you need to find the checkbox identifier (corresponding to the HTML input field’s id , name, or aria-label attribute value), if it exists. There are two methods to find this information (using the context menu, or using the browser’s Dev Tools), which are both described in the documentation.
Next, while editing the login item, click 
Add Field, set the Field Type to “Checkbox”, and set the Field Label to the identifier string found in the previous step:
After clicking Add, you will see the custom field just created:
The box will be unchecked by default, but it is also possible to set it to a checked state (by left-clicking the box):
When you’re done configuring the custom field, don’t forget to click Save to save your changes.
Then test it. Like I said above, depending on how the checkbox was implemented in the website’s HTML code, this may or may not work. In my experience, the probability of success is about 50-50 (or less). Sometimes, there may be other custom field “tricks” that could be used to check or uncheck a problematic checkbox — if you are having problems with a specific web form, please provide a link if you would like for me to take a look at it and determine whether auto-unchecking can be made to work.