Are Lubuntu and Xubuntu stable and supported enough?

[Rubi1200]

Do not use Lubuntu.

As far as Xubuntu is concerned, only use it for testing purposes but have always found it to be fast and stable on my system.

[j2ee]

I am going to install Lubuntu in old laptop, so this is the best option? 2GB ram 15 years old T60 thinkpad.

[Bashing-om]

j2ee; Hello again

I am still stuck on xubuntu, but lubuntu is a good option:
https://help.ubuntu.com/community/Lubuntu
Has the minimums listed,

any 'buntu is a good 'buntu

[j2ee]

j2ee; Hello again

I am still stuck on xubuntu, but lubuntu is a good option:
https://help.ubuntu.com/community/Lubuntu
Has the minimums listed,

any 'buntu is a good 'buntu

Hey Bashing, my old laptop cpu only runs with 32 bits. Lubuntu is the only Ubuntu distro supports 32 bits in future so I don't have another choice. I will install the 18.04 TLS version because seem like it is much more stable and smooth than the 19.04 one.

[Bashing-om]

j2ee; Uh Huh

On LTS (Long Term Support): 18.04 will have 5 years from time of release. However, lubuntu is also dropping 32 bit support in the future.
https://lubuntu.me/sunsetting-i386/

just the way things are

[guiverc]

Lubuntu & Xubuntu both dropped x86 (32bit) the same month (Dec 2018 in the 19.04 cycle).
Neither (Lubuntu or Xubuntu) produced official 19.04 ISOs in anything but amd64 or x86_64.

I tested both using thinkpad t43 (much older than your T60 which I suspect is amd64/x86_64 - thus I'd use x86_64 if you intend using that machine into 2021 so you have an upgrade path!) and like laptops with 1GB of ram or more.

Myself, which is best for you only you can decide - as mostly it's GUI differences and your preferences as to which you'll like the best.

Both Xubuntu 18.04 LTS & Lubuntu 18.04 LTS are supported until 2021-April (ie. 3 years) being flavors.

Unless you have bandwidth restrictions, you could consider downloading both - writing them to thumb-drives and giving them a spin (ie. using the Try option in 'live' mode). It's covered in https://tutorials.ubuntu.com/tutoria...-you-install#0 but applies equally to flavors. Live mode isn't as good as once installed - but it's great to try first!

Thanks @Bashing-om for using that link on Lubuntu (minimums), I may have to amend it - it's out of date!!!