Best duplicate finder for Photos app?

He everyone!

I'm looking for utility to clean duplicates and similar photos from my photo library on Mac. As there are more than 20.000+ photos stored during the last 5 years, and most of the copies created due to burst mode photos from iPhone and backups.

I've serched for "photo duplicate finder" app, and in the most reviews and comparison I see Gemini 2 and Photosweeper:

https://www.cisdem.com/resource/top-5-best-duplicate-photo-cleaner-for-mac.html

https://9to5mac.com/2015/05/07/how-to-shrink-mac-photo-library-delete-duplicates /

https://doctorduplicator.com/cisdem-vs-gemini-2-review/

https://thesweetbits.com/best-duplicate-file-finder-remover-mac/

Neither review was convincing enough for me, as all of them not shows how precise apps work.

Exerywere the accent is on how much space you can clean with apps. However, I don't starve from disk space my photos are taken! I only need to make well organized library!

Also I read some threats here, some users not recommended to use any "cleaner" apps and say it's a scam, some people recommended to use Photosweeper.

The main criteria for me are: free or low-cost app, and exact detecting of similar photos, as I don't want to lose my photos after "cleaning".

So the question is - which app to choose? Or it's not worth to use such kind of software, and do all of this job manually?

Want to get feedback from users who has experience working with such apps.
Thanks!