There are many ethnicities in the Philippines. I think it depends on the ethnicity: some are likely closer to Papuans and Polynesians and others to mainland East Asians. If you look at the % of Denisovan and other archaic-related lineages DNA, it varies substantially (here (https://www.pnas.org/content/pnas/116/31/15327/F2.large.jpg), here (https://news.harvard.edu/wp-content/uploads/2011/09/dna_asia_605.jpg?w=605) and here (https://www.researchgate.net/profile/Timothy_Jinam/publication/319536863/figure/fig4/AS:
[email protected]/Estimation-of-Denisovan-ancestry-in-Southeast-Asians-using-the-f4-ratio-test-Proportion.png)) among different ethnic groups in the Philippines. This indicates that there were several migrations from the continent.