Is this a Thunderbolt 3 connection on my laptop?

Is this a Thunderbolt 3 connection?

That can't be said, that is a USB-C connection.

USB-C is simply a mechanical connection, behind it can hide USB2, 3.2 Gen1 & Gen2, Gen2x2, DP, USB PD and also TB3.

Normally, TB3 is marked with a small flash as but USB-C PD sometimes has a flash as a flag, in addition, I see no symbols at all with you…

This is a USB Type C connector.

Whether that is USB 2.0 or even Thunderbolt 3 can't be said on the basis of a picture.

This is a USB C socket.

Behind it, however, can hide different techniques and protocols, so that one can't answer the question - but that should be the manual of the laptop.

Here is more about USB C and Thunderbolt:

https://www.pcwelt.de/...er,3291167