Anytime you make a modification to a vehicle, and that includes larger tires where a spare no longer fits in the stock location, there are ramifications. Any mechanic that has been around the block will tell you that and why most experienced ones are against "Mods" of any type. What ever you gain you also loose someplace. But most of us can't help ourselves me included

. But also why I refuse to go with a tire that doesn't fit a spare in the stock location.
I use the lifting rear window a lot. Why I built a platform to sit inside it to put things like groceries a couple times a week. And shooting stuff
Came in handy the other day when the damn barn door froze on me and I couldn't even open it. I'm not a fan of the barn door had to move the spare tire on the tongue of my trailer to the bed tied and locked down because of it. Thankfully the Polaris has 14" of ground clearance and I can drive up and over it.
My hunting and shooting buddy has a FJ
When I took this picture noticed his barn door and mentioned that I am not a fan of it. Said he loved his and mentioned I had thought about doing the conversion carrier to the rear door but then couldn't use the rear lift window. He immediately said that would be a hard no for him he uses his rear window too much and that would be a show stopper. No way am I doing a swing out tire carrier let's double down on a barn door with basically another one on a DD?! No.
And need the back for 2 dog crates sometimes. Or one crate and a flat tire
No way in hell I am running anywhere without a spare tire.
Lot of options available to us which is a good thing. We all have different needs and not all are the same. For me I'll just scrape bottom if I have to with the spare also scraping LOL. Having the Lux I can bump the ass end up a couple of inches when needed, it does help.