Thanks for the really informative post. A few questions if you don’t mind?
Can adaptive cruise control be turned off permanently?
Yes and no, as standard no (it's in the same options as the lane assist, so is easy to turn off) each week more and more options are found using diagnostic tools and can be disabled or customised but this isn't something Skoda want you doing.
How are the software updates delivered?
Just wireless, you get a notification that a update is available (bit like your phone) it's believed these are small updates and for anything bigger it's a dealer update.
Any issues with crashing/laggy infotainment?
Had some issues are first but nothing really bad, tbh it's been fairly stable since.
Hopefully not too off topic as I know OP is mainly interested in mk3 but I’d be really interested to know your thoughts