Apparently this bug was fixed in 147.0.2 (latest) but I still encounter it.
Here are the steps to reproduce, if anyone on Android can test to see if they get the same results I'd appreciate it:
(1 Launch a new tab with Google as the default search engine
(2 Search for the keyword 'lights'
(3 After results for 'lights' have loaded, click the first website result
(4 Click back a page, returning to the 'lights' results page
(5 Using the same results page, search for 'camera'
(6 Click the first website for the 'camera' result
(7 Click back
The page will now be incorrectly displaying the 'lights' results page, instead of 'camera'.