Just to be 100% clear on how you imagine this to work:
We're using Ancestry Paragon:
https://2e.aonprd.com/Rules.aspx?ID=1336
"When creating an ancestry paragon character, instead of starting with one ancestry feat and gaining another at 5th, 9th, 13th, and 17th levels, the character starts with two ancestry feats and gains another at every odd level thereafter (3rd, 5th, 7th, 9th, and so on) for a total of 11 ancestry feats."
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And we're using Free Archetype:
Relevant Text: " the character receives an extra class feat at 2nd level and every even level thereafter that they can use only for archetype feats. "
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Do you also intend to imply that there's an
additional feat that can be either one or the other in addition to the basics of using those variant rules? You wrote...
"We will be using the
ancestry paragon and
free archetype variant rules. (Above) You will get an
extra free feat every other level, you must choose either an ancestry OR archetype fest."
If you didn't, no worries. If you did mean 'an additional feat' - do those extra feats come on even or odd levels?