Docker buildx volume grows extremely quick - option to disable buildkit?

I'm using Podman 5.7.1 on Windows to run my devcontainers. After re-creating 2 devcontainers with rather large base images (~5 GB), I saw a massive increase of space needed by the WSL ext4.vhdx file, which grew to 150 GB in just two days.

Over a third of the space is utilized by the buildx_buildkit_default_state volume:

Then there are a few containers and images, it's fine that these occupy some space:

So the key question is: what can I do to not use buildkit? I'm perfectly fine with using the "traditional" caching methods. Buildkit on Podman feels doubled anyways.

Buildkit seems to be used by the vscode bootstrap image to build a Dockerfile, which I need to do when building my devcontainer.

Thanks :)

• VSCode Version: 1.107.1
• Local OS Version: Windows 11
• Remote OS Version: Ubuntu 24.04
• Remote Extension/Connection Type: Dev Containers
• Logs: no logs, just screenshots