Locating Pre Proto Uralic

[Jaska]

My bet is origins in Siberia (next to [one of?] big Siberian rivers due to Uralic mythology) geographically, Yakutia_LNBA autosomally and N paternally.

European side was Paleo-Northern-Euro languages (phonotactic features unfamiliar to the Uralic languages as per Jaska) to the North and Indo-European languages (Fatyanovo, Balanovo) to the relative South.

We have cultural (Siberian mythology), genetic (Yakutia_LNBA), archeological (paralels to I think Krotovo culture) impulse from the East into Central Uralic region. So, I bet that impulse also brought Pre-Uralic into Central Urals where in time it developed Proto-Uralic. Some part of them stayed nearby in Siberian side (future Samoyeds), did not participate in first Indo-Iranian loanwords but then got back into circulation for later Indo-Iranian loanwords and East Uralic phonetic changes.

I believe Occam is firmly on my side

This is possible. Apparently the Ural-Eskimo or Ural-Yukaghir hypotheses could agree with the Yakutia _LNBA origin of Pre-Proto-Uralic:

"The first turnover occurred with the appearance of the Syalakh-Belkachi population (~6.8-6.2kya, with ~20% admixture from an East Asian source from the Baikal region admixing into the preceding MiddleVitim_Dzhilinda1_M_N_8.4kya). This was followed by a second turnover with the appearance of the Ymyyakhtakh-associated Yakutia_LNBA population (~4.5- 282 3.2kya, with ~50% admixture from Transbaikal_EMN admixing into the preceding Syalakh-Belkachi 283 population). - -
...such Paleo-Eskimo-related ancestry (which is by extension Syalakh-Belkachi-related) then persisted into all later ancient and present-day groups such as Eskimo-Aleuts, Chukotko-Kamchatkans and Yukaghirs on both sides of the Bering Straits." (Zeng et al. 2023)