I don't believe Vietnam is friendly enough with France to actually commit to a deep relationship, like they can with the US or India. It's a more commercial relationship. The common China threat is bringing the two countries closer, but India has been Vietnam's strategic partner for 4 decades. A benefit of both countries being close to the SU.
I am simply saying Vietnam's not gonna buy 50-100 Rafales for France, but could do so for India.
Is Indian Military Base in Vietnam at Cam Ranh Port possible after securing access to the strategic Sabang Port in Indonesia? Many countries are keen to have a ‘Naval Base’ in Vietnam including Russia and the US, and there are speculations that Indian Military Base in Vietnam might be possible...
eurasiantimes.com
India basically has enough access to Vietnam's ports and naval bases that there's no limit to how many ships we can station there "temporarily". Meaning, we need to negotiate the duration of the stay, but there's no upper limit.