Now that I've been trying this out for ~20 day, I just wanted to give an update on what I've learned. Bottom line: I mostly love it. Sure I'm biased because I set out with high hopes for this experiment, but let me explain.
As of this writing, I have 279 tabs open. I have not been strict about not deleting tabs. If I want to type something into an address bar, I will just do it, without worrying about creating a new tab to save the previous one.
There is very minimal lag, if any, when scrolling vertically though the tabs. The number of tabs open does not seem to effect the performance. To me, it seems that 20 tabs open has just as much of a chance of lagging as 279.
The essential reason of why I mostly love it, is because it provides an easier way to look through your history, than actually going to your history. Scrolling vertically through the tabs gives you visual feedback of what the site actually looked like, which tips your brain more easily than a plane-text history log.
Now I did say "mostly" love it. The only real problem is my habit of closing tabs, and getting in the habit of opening new tabs. I still find myself instinctively swiping tabs closed, but it really doesn't bother me when I do this. I also think it's fair to say that I open more tabs than I normally would if I weren't actively trying to retain them. I think this leads to slightly more interactions overall when compared to using it the normal way. That said, with the normal way, you are still opening new tabs, swiping to delete tabs, etc, so I'm not to sure the time spent doing two taps to open another tab more frequently, is significantly more time than with normal usage.
Anyway, thanks for reading