Change the title field

There are 3 fields: "Last Name", "First Name", and "Middle Name". This was done because the search filter is divided by these fields, so for example, you can select everyone with the last name "Pupkin". The task is as follows:

We need to ensure that when filling in these 3 fields in the admin panel, the title field is automatically populated based on these 3 fields. Alternatively, we could remove the title field and display all three fields in a single line without labels, resulting in "Dostoevsky Fyodor Mikhailovich".

How can this be implemented?