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How to free LVM pool space after initial install?

I have build a Centos 7.9 server with a very basic LVM config. Basically want just one big pool for VMs. After the initial install, there is zero free space in the device/pool. Any ideas why? What did I do wrong during the partition config? Is there an easy way to add the space back into the pool (vg_tvchost4)?

[root@tvc-host4 ~]# df -h
Filesystem Size Used Avail Use% Mounted on
devtmpfs 63G 0 63G 0% /dev
tmpfs 63G 0 63G 0% /dev/shm
tmpfs 63G 9.3M 63G 1% /run
tmpfs 63G 0 63G 0% /sys/fs/cgroup
/dev/mapper/vg_tvchost4-root 5.7T 2.5G 5.7T 1% /
/dev/sda2 2.0G 158M 1.9G 8% /boot
tmpfs 13G 0 13G 0% /run/user/0

[root@tvc-host4 ~]# ssm list

Device Free Used Total Pool Mount point

/dev/sda 5.73 TB
/dev/sda1 2.00 MB
/dev/sda2 2.00 GB /boot

/dev/sda3 0.00 KB 5.67 TB 5.67 TB vg_tvchost4

Pool Type Devices Free Used Total

vg_tvchost4 lvm 1 0.00 KB 5.67 TB 5.67 TB

Volume Pool Volume size FS FS size Free Type Mount point

/dev/vg_tvchost4/root vg_tvchost4 5.66 TB xfs 5.66 TB 5.66 TB linear /
/dev/vg_tvchost4/swap vg_tvchost4 4.00 GB linear

/dev/sda2 2.00 GB xfs 1.99 GB 1.84 GB /boot


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