Choosing an indexing tool depends on your scale. Use the Google Indexing API...

https://seo.edu.rs/blog/why-your-indexing-tool-says-indexed-but-gsc-says-otherwise-11102

Choosing an indexing tool depends on your scale. Use the Google Indexing API for large catalogs to see updates in under two minutes. For smaller backlink campaigns, simpler ping services suffice. Just remember: no tool fixes poor content