You’ll fit a modern buggy in the boot just fine (I do so occasionally) but very little else. The boot isn’t particularly high so you can’t stand buggies up on their side, and when laid flat your boot is gone.
If it helps, we have a single Bugaboo somethingorother so nothing out of the ordinary.
Otherwise, it’s great as a small family car.
If this is your only family car, or you tend to carry a few extra things ‘just in case’ my money would go on the Octavia VRS or a Golf estate. The boot size on either will take a few moments of frustration away, which is worth it as those frustrating days will come when your kid is having a bad day. They always do.