The phrase "arguably because of" is correct and usable in written English.
It can be used when discussing a point of view or opinion that suggests a reason for a particular situation or outcome, while acknowledging that this reasoning may be open to debate.
Example: "The team's success is arguably because of their strong leadership and collaboration."
Alternatives: "possibly due to" or "perhaps as a result of".
They are doing it, arguably, because of the smartphone's glare.
Despite their guns (or, arguably, because of them), they are quite peaceable.
Arguably, because of history and politics, Cuban food is much better known than Puerto Rican.
Despite a lack of attention to employee health and happiness — or, arguably, because of it — some companies are enjoying record profits.
As I pointed out in the London Evening Standard last week, "this kind of repetitive wall-to-wall coverage seeps into the public consciousness" despite, and arguably because of, antagonistic headlines and comments.
Arguably, because of the absence of any benefit for the target/human life/civilisation/environment, the manufacturing process is destroying existing wealth and, in so doing, devaluing the money used as the measure.
I am even more honored to have him join our movement knowing more about his background and the advantages he created for himself despite--and arguably because of--his challenging path.
Arguably, because all of the enzymes seen in this network affect folate metabolism, they all are candidates for influencing comorbid depression with AUD.
Little fuss was made about the match being moved out of the reach of ordinary fans, arguably because in the US supporters realised a long time ago professional sport is a business not a game.
Fresno County, where most of the district lies, is one of the poorest in the nation, arguably because the bounty of agricultural profits has been concentrated among a small number of farm-owning families.
With this construct, a lack of a significant difference between treatments could arguably be because of the exam items chosen, but a significant difference most likely reflects differences in learning at multiple levels between the two groups of students.
