Yeah I’d only get it serviced by a dealer for service history.
Even better an independent who can update online service record.
I did mine myself last year and it wasn’t ‘that’ hard to do.
Deffo change the oil filter.
There are a few more videos on YouTube now for this procedure.
Just bear in mind that the Red fill pipe doesn’t need loosening 2 turns.
This will make sense when you read the instructions
how to do it
If I remember I’ll update this thread with the latest DQ381 workshop manual I could find (a 2020 one made by Skoda, but same gearbox)