Note those figures are four years old. The RPG market in NA is $80M now.
The below table is based on figures from ICv2. For timescale context, also compare chart changes with events listed in the chart [URL='https://www.enworld.org/threads/tsr-wotc-paizo-a-comparative-history.662357/']TSR, WotC, & Paizo: A Comparative History[/URL].www.enworld.org
Really, that just makes my point even stronger.
We never know in dollar terms, what first, second or third place actually mean. All we know is how a given game is doing relative to another game. So, what does second place actually mean? Sure, Pathfinder got into first place, but, at a point when the market was only about 15 million dollars total. Presuming that being in first place means a majority share of the market, that puts Pathfinder somewhere around the 8 million dollar mark. Give or take.
Now, fast forward to 2020. Second place could be 8 million dollars and no one would even notice since the signal noise from the other 60 million that 5e is controlling just blots out everything else. It gets even more difficult with smaller numbers.
Which is just my way of saying, no one really knows how well or badly Pathfinder 2 is doing. My gut feeling is that people's opinion of how well the game is doing has far more to do with whether or not they like the game than with anything else.