"if it's actually" is correct and usable in written English.
It is most commonly used to introduce a contrasting statement or fact that has been revealed as a result of some evidence or proof. For example: "I heard he was going to the party, but if it's actually true, I'll believe it when I see it."
Exact(56)
But China must go further to manage the water-energy collision in its coal industry if it's actually going to meet these water-cap targets.
If it's actually the work of Britain's best-known street artist, we can't wait to see dark his take Disney's eternally peppy army of costumed characters.
"If it's actually true that Miss America is the world's largest provider of scholarships for women, that's a little bit weird because Miss America does not offer scholarships to all women," Oliver said on HBO's "Last Week Tonight" on Sunday.
This move by Samsung, if it's actually true, could be a response to its European legal dealings with Apple.
I could go on and on with Huawei's special camera features, but it's hard to judge if it's actually useful without using the phone for a few days.
If it's actually happening, I'd say that's good".
What if it's actually nine minutes and I'm running late?
Similar(4)
An additional review process that may take up to year is required to determine the bird's origin, and if it is actually the gray-hooded gull.
Many who saw the golden spruce spoke of its peculiar radiance, as if it were actually generating light from deep within its branches.
Innovation can diffuse without commodity trade, but its linkages will be magnified if it is actually purchased.
The latter is a term of art in Kelsen's writings: A norm is efficacious if it is actually (generally) followed by the relevant population.
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Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com