How to display checked checkboxes in recyclerview, on activity start-up(many to many relationship)

I have a recyclerview and a recylerview adapter. I have a Room database. Also I have 2 Room models/entities which they're named "Folder" and "Note" and are Many-to-many relationship. The recyclerview displays all the "Folders" and each "Folder" have a checkbox. Each "Note" is differently "added" to "Folders" or should I say, different checked folders for each "Note".

I have already implemented a functionality which checks all "Folder" checkboxes at activity start-up, inside onBindViewHolder and in FolderHolder(RecyclerView Holder) in recyclerview adapter.

The problem is when multiple "Folders" exist in recyclerview when I uncheck the checkbox, then scroll down, then back up, the unchecked folder rechecks itself as it was. I understand that onBindViewHolder gets called every time on scroll and recycling views thus checked "Folder" gets rechecked on scroll.

Please can you suggest me a code to this? I would really appreciate this!

My recyclerview adapter:

public class FoldersAddToFoldersAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {

    private final Context context;

    private final ArrayList<Folder> folders;

    private final List<Folder> checkedFolders;

    private final Note note;

    private final FoldersDAO foldersDao;

    private final NotesFoldersJoinDAO notesFoldersJoinDao;

    public FoldersAddToFoldersAdapter(ArrayList<Folder> folders, List<Folder> checkedFolders, Note note, Context context,
                                      FoldersDAO foldersDao, NotesFoldersJoinDAO notesFoldersJoinDao) {
        this.folders = folders;
        this.checkedFolders = checkedFolders;
        this.note = note;
        this.context = context;
        this.foldersDao = foldersDao;
        this.notesFoldersJoinDao = notesFoldersJoinDao;
    }

    @NonNull
    @Override
    public RecyclerView.ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
        View v = LayoutInflater.from(context).inflate(R.layout.folder_add_to_folders_layout, parent, false);
        return new FolderHolder(v, this, notesFoldersJoinDao);
    }

    @Override
    public void onBindViewHolder(@NonNull RecyclerView.ViewHolder holder, int position) {
        final FolderHolder folderHolder = (FolderHolder) holder;
        final Folder folder = getFolder(position);
        if (folder != null) {
            //[..]

            folderHolder.setData(note, folder);


            // **THIS IS THE CODE WHICH CHECKS THE FOLDERS, WHICH I WAS SAYING ABOUT.** 
            for (Folder checkedFolder : checkedFolders) {
                if (checkedFolder.getId() == folder.getId()) {
                    folder.setChecked(true);
                }
            }
            folderHolder.checkBoxAddToFolders.setChecked(folder.isChecked());
        }
    }

    public void addCheckedFolder(Folder folder) {
        checkedFolders.add(folder);
    }

    public void removeCheckedFolder(Folder folder) {
        checkedFolders.remove(folder);
    }


    public static class FolderHolder extends RecyclerView.ViewHolder {

        CheckBox checkBoxAddToFolders;

        FoldersAddToFoldersAdapter adapter;

        Note note;

        Folder folder;

        NotesFoldersJoinDAO notesFoldersJoinDao;

        public FolderHolder(@NonNull View itemView, FoldersAddToFoldersAdapter adapter, NotesFoldersJoinDAO notesFoldersJoinDao) {
            super(itemView);
            checkBoxAddToFolders = itemView.findViewById(R.id.checkbox_add_to_folders);
            this.notesFoldersJoinDao = notesFoldersJoinDao;
            this.adapter = adapter;


            // THIS IS ALSO IMPORTANT FOR CHECKBOX.
            checkBoxAddToFolders.setOnClickListener(v -> {
                boolean isChecked = checkBoxAddToFolders.isChecked();
                NoteFolderJoin noteFolderJoin = new NoteFolderJoin(note.getId(), folder.getId());
                if (isChecked) {
                    folder.setChecked(true);
                    adapter.addCheckedFolder(folder);
                    notesFoldersJoinDao.insertNoteFolderJoin(noteFolderJoin);
                } else {
                    folder.setChecked(false);
                    adapter.removeCheckedFolder(folder);
                    notesFoldersJoinDao.deleteNoteNoteFolderJoin(noteFolderJoin);
                }
            });

        public void setData(Note note, Folder folder) {
            this.note = note;
            this.folder = folder;
        }
    }
}