On the one hand, the Viet Minh lack Chinese Communist territory to serve as a strategic rear. Moving especially heavy weapons, aid and advisors to Viet Minh area becomes much harder for the Chinese Communists and Soviets than it was in OTL.
On the other hand, the appearance of Communist China on the border of Indochina motivated a much larger amount of American aid being given to French forces and Indochinese proxy forces aligned to them. Also, the Viet Minh had nationwide political support and networks going back to 1945, long before the Chinese Communists were present on the China-Indochina border. The Viet Minh also had territorial control over large parts of the Vietnamese countryside in the early part of the war with France from 1945-1949, before Chinese Communists showed up at the border.
And, the French, despite having what they considered a military victory in the field in Algeria and without suffering a Dien Bien Phu style defeat, still was compelled to withdraw from Algeria.
All that said, how is the ultimate settlement of Franco-Viet Minh effected by a lack of contiguity with a Communist state, if at all. For example, are the territorial and election deals or the timing of an armistice, changed, and if so, how?