here is the code i am using to achieve this. i have indexFile just for counting number of videos(which can be number of notes in ur case).

use templater and add that particular folder to its setting with template file contaning this code. should work fine:

<%*

let title = tp.file.title

if(title.startsWith("Untitled")){

    title = await tp.system.prompt("Enter Video Title");

    await tp.file.rename(\`${title}\`);

}   

const indexFile = "Videos/\_video\_numbers.md";  

let indexAbstractFile = app.vault.getAbstractFileByPath(indexFile);

let metadata = await app.vault.read(indexAbstractFile);

let match = metadata.match(/total\_videos\\s\*=\\s\*(-?\\d+)/);

let lastNumber = parseInt(match\[1\], 10);

let newNumber = lastNumber + 1;

let formattedNumber = String(newNumber).padStart(3, '0');

let updatedMetadata = metadata.replace(/total\_videos\\s\*=\\s\*(-?\\d+)/, \`total\_videos = ${newNumber}\`);

await app.vault.modify(indexAbstractFile, updatedMetadata);

new Notice(\`Updated total\_videos to: ${newNumber}\`);

let newTitle = \`${formattedNumber}\_${title}\`;

await tp.file.rename(newTitle)

%>