Hi tomas,
Excellent question! Yes, this Samsung range model has a self-cleaning feature.
You can check it on the user's manual on pages 52 to 53.
Here's the user's manual link: https://downloadcenter.samsung.com/content/UM/202103/20210308175728522/NY63T8751SS_AA_DG68-01218A-04_EN.pdf
If you have inquiries and need further assistance in the future, you may contact us via the following options:
1. Facebook Messenger: http://m.me/samsungsupport
2. Twitter: https://twitter.com/messages/compose?recipient_id=18768513
3. Samsung Community: https://us.community.samsung.com/t5/Samsung-Community/ct-p/us
Once you contact us, you can provide this reference number 1144933912.
^Rainly