I'm still on Sequoia on main Mac but I've been on 26 beta VM's since the 1st dev beta released (still on 26.1 beta 3 though). I've not really had any stability issues with 26.x as a whole. If you can be more specific about where you're seeing stability issues I'd be happy to check a given scenario for you, but imo, 26.x has been pretty reliable if you can stomach LG on macOS. I'm not a fan so I've avoided the permanent jump. That said, not all features are available in VM's, so it's entirely possible that I've not encountered stability issues by virtue not being able to access features you're finding unstable.
**EDIT** You also didn't specify which OS, so apologies if you meant anything other than macOS
FWIW, I have seen significant improvements to the LG elements in macOS 26.1 in addition to other UI improvements (such as a much requested larger 'applications' window when using the new spotlight replacement for Launchpad etc). Imo macOS 26.1 is shaping up to be the release that 26.0 should have been. There's no love for 'large corner radius' haters though.
Although you didn't respond directly to me, I'm inferring from this post that the answer to my earlier question is a hard NO 🙁.