I found the Scandinavian lights option for my 2015 Fabia and liked the idea of the rear lamps being on too. However, activatiing this option leaves teh DRLs on at all times, including when the sidelamps (parking lamps) or headlamps are turned on.
As I understand it, legislation dictates that the DRLs should either extinguish or dim when the headlamps are on. The choice can be that they turn off, to be replaced by the sidelamps, or dim to that lower brightness level.
Leaving the DRLs on with the headlamps is therefore an offence, and could bring a risk of fines or just inconvenience if spotted by a clued-up and pedantic police officer. (You'd have to assess that risk level yourself.) As a driving instructor, i cannot take that risk at all.
The legislation around DRLs was, in my view, created by bureaucrats in Brussels, tasked with harmonising rules across the EU, without understanding them.
DRLs were created in Scandinavia to ensure vehicles were lit at night, to compensate for inebriated drivers meeting inebrated pedestrians, and have been successful in reducing injury and death in those circumstances. The argument for the rest of Europe is less valuable, but they do show a potentially moving vehicle. In Scandinavia, they illuminated brighter front lights and the standard rear lamps. When the EU rules appeared they seem to have missed the rear lamps. However, running with rear lamps as well is not an offence.