I bought my Octavia RS new in July 2021. Have to say, not impressed either and this was my 4th Škoda.
I too had the adaptive cruise control bug along with terrible vibration in the dash, issues with led matrix head lights, excessive noise from the boot and although it’s got decent acceleration, it was a bit dull to drive.
I also had issues with infotainment system freezing, apple car play issues where music would pause or be slow to play and issues with system saying batteries in both keys needed replacing after they were already replaced.
I had enough with the issues and sold it to a main dealer in March this year.
My 2019 Superb Sportline was a great car.
After years with Skoda, moving to the Kia EV6. Kia and Hyundai leaving the Japanese and Germans behind in build quality.