Not really, I'm afraid.
There's a free trial option, and I've downloaded Photo AI and am playing around with it. It definitely sharpens very well, and I'm even more impressed with the denoising, but I'm still dithering about whether to buy because I'm not sure it's worth the money for me personally.
Or does the bag make a huge difference?
Yes, it absolutely does.
I bought a new bag when I added some new gear a few years ago, and the difference in how comfortably I could carry all that stuff around with me was astounding. I would definitely recommend seeing if you can't find something that fits you better, it might be all the change you need.
I don't use Lightroom, sorry.
The standalone Denoise AI does better than the latest Capture One with some very noisy images I've tested, but I suppose it might also depend on the subject matter (I was trying it out on high ISO photos of birds) and your personal taste.
You can download trial versions of all their apps, but there's no Black Friday discount on the individual apps, you only save if you buy the whole bundle. I'm thinking I might buy the standalone Denoise AI, but as there's no BF discount, there's also no rush...