Is it possible to implement selective application of paragraph styles using scripts?

Found a script and adapted it for you

https://graphicdesign.stackexchange.com/questions/162284/help-w-script-find-two-paragraph-styles-change-the-second-one

if (app.documents.length > 0) {
    var doc = app.activeDocument;

    // Define the paragraph styles
    var styleA = doc.paragraphStyles.itemByName("A");
    var styleB = doc.paragraphStyles.itemByName("B");
    var styleBNone = doc.paragraphStyles.itemByName("B-none");

    if (styleA.isValid && styleB.isValid && styleBNone.isValid) {
        // Loop through all stories in the document
        var stories = doc.stories;
        for (var s = 0; s < stories.length; s++) {
            var paragraphs = stories[s].paragraphs;

            // Loop through the paragraphs in the story
            for (var i = 1; i < paragraphs.length; i++) { // Start from the second paragraph
                if (
                    paragraphs[i - 1].appliedParagraphStyle == styleA && // Previous paragraph is A
                    paragraphs[i].appliedParagraphStyle == styleB // Current paragraph is B
                ) {
                    // Change the current paragraph's style from B to B-none
                    paragraphs[i].appliedParagraphStyle = styleBNone;
                }
            }
        }
        alert("Script finished: B changed to B-none where preceded by A.");
    } else {
        alert("One or more paragraph styles (A, B, B-none) are missing. Please check!");
    }
} else {
    alert("No document is open. Please open a document and try again.");
}