In linux you have containers, with them you can have multiple linux distros without taking performance hits.
lxc its a method to create containers in linux.
lxd is a manager for containers via lxc.
#Install with (it will install needed dependencies like the lxc):
# for arch
pacman -S lxd
# then you search for you distrubution
#for ubuntu you can do:
lxc image list ubuntu:
#and for others you can list with
lxc image list images:
#and it will give you a list of containers
#you can filter them with grep
# after um find what you need you can install it with the launch
# for exemple you can install archlinux with
lxc launch images:archlinux
# debian with
lxc launch images:debian/sid
#and ubuntu with
lxc launch ubuntu:20.04
# it will give you a name you change it with the move command if want to
#for using the console use the
lxc exec <name-of-the-container> bash
#for setting up an shared folder
lxc config device add <container-name> vartest disk source=$(pwd)/debian-shared path=/mnt/host
# and for all users to use it
lxc config set <container-name> security.nesting true
# and restart it with
lxc restart <container-name>to have ssh and passthrough the Xorg with
ssh -X <user>@<host>for other stuff visit the lxc and lxd archwikis.
To port forward a container do the following:
lxc config device add container-name myport8443 proxy listen=tcp:0.0.0.0:5555 connect=tcp:127.0.0.1:8443
where the listening port is the port exposed in the host and the connect is the port in the guest.