I also find lxc system containers better than OCI style immutable containers for dev environments for my personal projects, and LXD is the best way to manage them AFAIK.
- Quick and easy multi-tenancy
- Very easy to build development enviorment isloated from the system.
- Isolation host for docker containers.
- Automatic networking support with DHCP , OVN or MacVLAN if you have multiple physical IPs.
- Home Made Cluster of containers.
It is literally best way to host multiple docker containers. Isolated from each other.
You wont need K8s in many case , infact if you don't have 10k+ users , do not need to worry about 99.999 uptime and redundancy - LXD is all you need.
Or if you have only one Physical Machine and want to test K8s cluters , you can use LXD Containers for that instead of resource intensive VMs.
It's the closest I've found to Linux-VServer which I still miss to this day.