The second branch (M930-L804) arrived near 3200 ybp in Scandinavia.
Members of the third branch (M930-M3) migrated near 12600 ybp in the Americas and has the largest number of descendants in the Americas. A few descendants have some ancient DNA in Chukotka on the Russian side of Beringia.
The old easiest model was a single crossing of Beringia. Recent research has already claimed that a single crossing was insufficient to explain all aspects of archeology and DNA ancient research.
The main challenge with this scenario is the time of fast expansion of M930-M3. Since we have several members in Beringia in the M930-M3 branch, it would mean that the migration was near 12600 ybp, but the group would have many Q-Z780 membe(with large family distance) and some M930-M3 members. The Z780 descendants would spread in part of the northern part of the Americas and have a relative smaller number of descendants. The M930-M3 would behave tribal with fast expansion over a large area of the Americas.
This scenario is rather complex because it needs a large group for the crossing of Beringia, but also a long period (about 3000 years, so 100 generations) for the group to evolve from a shared ancestor. Within this period we also need a split to a branch that ends in Scandinavia, and descendants who remained in Russia.
Notice that the lack of large language families is probably related to the pattern of the phylogenetic tree. Humans distributed in a very short period over all parts of the Americas. After that they stayed in the regions where they arrived. No large migrations or derge mixtures took place in the Americas. This resulted in a pattern that is comparable with isolated islands. Each island has is own changing language which resulted in a language isolate and the Y-DNA pattern with only one or a few Y-DNA ancestors, depending on the size of the group.
The only exceptions are the larger powerful tribes of Aztec, Maya and Inca. These tribes resulted in larger distribution of the language families of Uto-Aztecan, Mayan and Quechuan, see Indigenous languages of the Americas on wikipedia.
A study of Y-DNA in the languages isolate in the Americas will probably help to understand the history of languages in the Americas.
This means that 12000 years is sufficient to create a language isolate.
The origin of the Turkic language is discussed, but unclear. It has been suggested several times that at the oldest information of the Turkic language it was already a mixtures of genetic lines. The most plausible scenario that has been suggested a few times is the combination of the parallel lines of Q-YP4010 and Q-L330 (e.g. Skhalyakho et al.). An attempt to relate the Y-DNA and Turkic language together, based on Chinese historical documents was not succesfull, see Lee and Kuang (2017)
link to phylogenetic tree: Q-L275
link to phylogenetic tree: Q-F1096
link to phylogenetic tree: Q-Y2659
link to phylogenetic tree: Q-YP4010
link to phylogenetic tree: Q-L330
link to phylogenetic tree: Q-Z780
link to phylogenetic tree: Q-L804
link to phylogenetic tree: Q-M3
yfull-links: Q - Q-L275
yfull-links: Q - Q-L472 - Q-F1096
yfull-links: Q - Q-L472 - Q-L56 - Q-Y2659
yfull-links: Q - Q-L472 - Q-L56 - Q-L53 - Q-YP4010
yfull-links: Q - Q-L472 - Q-L56 - Q-L53 - Q-L54 - Q-L330
yfull-links: Q - Q-L472 - Q-L56 - Q-L53 - Q-L54 - Q-M1107 - Q-Z780
yfull-links: Q - Q-L472 - Q-L56 - Q-L53 - Q-L54 - Q-M1107 - Q-M930 - Q-L804
yfull-links: Q - Q-L472 - Q-L56 - Q-L53 - Q-L54 - Q-M1107 - Q-M930 - Q-M3