Hello everyone,
My name is Liviu and I decided to write my first post ever, to salute you all, from Europe, Romania.
I just started using Ubuntu 25.04(studio) about two weeks ago and I must say I am really pleased.
I started using Linux when RedHat was version 5.x (if I remember well) and during the years I also have been using FreeBSD(zfs), Gentoo(ext4,xfs), MacPro , Fedora(zfs) and of course Windows (unfortunately) - I’m a software developer and my job requires me to use windows 
So, what brings me here?
-the passion of using ZFS even this is just a normal desktop but I really like the speed and the security that this file system gives me.
-the stability of Ubuntu and how it recognizes my all new hardware (ASUS laptop)
Also, what I really do like about the ZFS (besides the powerfull snapshota) is the ability to run it on root over my two 1TB SSD as RAID0!!! 
liviu@bobdenaut:~$ zpool status
pool: zroot
state: ONLINE
scan: scrub repaired 0B in 00:00:34 with 0 errors on Sun Sep 14 00:24:35 2025
config:
NAME STATE READ WRITE CKSUM
zroot ONLINE 0 0 0
nvme-Micron_2400_MTFDKBA1T0QFM_22423C6886AE-part2 ONLINE 0 0 0
nvme-KINGSTON_SNV2S1000G_50026B76863BCB72-part1 ONLINE 0 0 0
errors: No known data errors
liviu@bobdenaut:~$ zpool list
NAME SIZE ALLOC FREE CKPOINT EXPANDSZ FRAG CAP DEDUP HEALTH ALTROOT
zroot 1.81T 72.1G 1.74T - - 1% 3% 1.00x ONLINE -
liviu@bobdenaut:~$ zfs list -o name,used,logicalused,compression,compressratio,available,referenced,mounted,mountpoint,recordsize,type
NAME USED LUSED COMPRESS RATIO AVAIL REFER MOUNTED MOUNTPOINT RECSIZE TYPE
zroot 131G 88.2G lz4 1.28x 1.63T 200K yes /zroot 128K filesystem
zroot/ROOT 34.6G 44.7G lz4 1.42x 1.63T 192K no none 128K filesystem
zroot/ROOT/ubuntu_25.04 34.6G 44.7G lz4 1.42x 1.63T 10.7G yes / 128K filesystem
zroot/ROOT/ubuntu_25.04/home 17.5G 19.8G lz4 1.21x 1.63T 10.4G yes /home 16K filesystem
zroot/ROOT/ubuntu_25.04/tmp 21.5M 20.8M lz4 1.06x 1.63T 14.9M yes /tmp 128K filesystem
zroot/ROOT/ubuntu_25.04/usr 876K 292K lz4 1.00x 1.63T 192K no /usr 128K filesystem
zroot/ROOT/ubuntu_25.04/usr/local 684K 223K lz4 1.00x 1.63T 660K yes /usr/local 128K filesystem
zroot/ROOT/ubuntu_25.04/var 5.71G 8.22G lz4 1.56x 1.63T 192K no /var 16K filesystem
zroot/ROOT/ubuntu_25.04/var/lib 5.27G 7.14G lz4 1.48x 1.63T 4.83G yes /var/lib 16K filesystem
zroot/ROOT/ubuntu_25.04/var/log 457M 1.08G lz4 2.44x 1.63T 443M yes /var/log 16K filesystem
zroot/ROOT/ubuntu_25.04/var/snap 192K 69K lz4 1.00x 1.63T 192K yes /var/snap 128K filesystem
#this is a volume zvol - windows on virtual machine runs directly on the disk
zroot/VMs 81.2G 26.2G lz4 1.00x 1.63T 192K yes /zroot/VMs 128K filesystem
zroot/VMs/Win11 81.2G 26.2G off 1.00x 1.68T 17.3G - - - volume
zroot/postgres 24.0M 44.6M lz4 2.16x 1.63T 23.0M yes /postgres 16K filesystem
#again, zvol - swap on disk
zroot/swap 8.13G 4.00G off 1.00x 1.63T 4.01G - - - volume
zroot/wildfly 323M 318M lz4 1.11x 1.63T 323M yes /wildfly 16K filesystem
zroot/work 6.64G 12.8G lz4 1.96x 1.63T 5.99G yes /myapplications 256K filesystem
So yea, it’s a very fast laptop, my daily driver and I really love how everything works in Ubuntu.
All the best!
PS. hopefully zfs will remain integrated in Ubuntu!
PS2. instead of GRUB I’ve installed ZFSBootmenu as my boot loader, it’s fantastic!