I have little idea how simple it would be to use an existing PPA that provide LXQt 1.0 (or 1.1) and then switch to an official backport/PPA version of the packages. At worst I’d assume you’d need to ppa-purge your original PPA & then upgrade with replacement more-official packages & I’d expect that would work, but I’ve not tested or looked at it sorry.
Your system will automatically upgrade to the latest packages available from your sources (which with backports enabled includes packages available there too). There has been a ton of packaging activity visible in #lubuntu-devel which includes Simon mentoring and instructing Aaron (both of whom I mentioned in prior posts)
I don’t think the age of a PC matters that much, I’m using my primary 2009 dell to reply to this here; but yes if compiling source code on this box for subsequent testing, especially running VMs to test something and this boxes lack of resources starts to show. If I want to test something I subsequently use another box I have here instead. FYI: I’m not a Lubuntu developer, so it’s very rare for me to be compiling anything.
If it was me, I’d likely wait for the official backport… If you’ve not seen it, I’ll provide the following link
https://lists.ubuntu.com/archives/lubuntu-devel/2022-June/001909.html
22.04 highlights:
- Prior to 22.04.1 LTS, our goal is to fix an installer bug related to btrfs installs. Please test when it becomes available.
- We’re working on backports for LXQt 1.1 and other goodies. If you’re a developer type, you can track the progress here
Note: I’ve fudged the quote a little; so read the original ML for to best understand (ML posts use different formatting)
If you wanted to just play a little with Lubuntu with LXQt 1.1.0, you’ve been able to test drive it on Lubuntu kinetic dailies for some time now (that’s what I’m using right now & part of what is mentioned in upstreaming LXQt 1.1 to Debian in this link I believe I already provided)