Yes, it's old thinking. The newest cars have up to 14:1 compression with turbo. Ecoboost is 10:1 since 2010

Drag racers like to lower the compression and use the turbo boost for maximum power but as noted above that lessens part-throttle power -- not great for a street car

Interestingly, one of the first turbo cars (1962 GM Cutlass) had 10.25:1 compression and used water/alcohol injection to prevent detonation. Pity it didn't catch on, people forget to check the level of the fluid