Ariya = noble one.
ariya-sāvaka = disciple of the noble ones, but is not necessarily noble themself.
my article here examines many sutta passages
https://lucid24.org/tped/a/ariya/index.html#2
such as these:
KN Iti 82 Iti 82 shows a newly ordained monk would already be a stream enterer 'ariya savaka' before ordaining, which is clearly unlikely though not impossible.
MN 152 comparison between an arahant, a sekha (a trainee who is at least stream enterer), and an ariya. Ariya savako term does not appear in this sutta.
SN 45.8 right livelihood, even people who are not ariya can do right livelihood their whole life. Nothing special or ‘noble’ about that. The other 7 factors of the noble eightfold path, the Buddha refers to bhikkhu/monk instead of ariya-savako.
The fundamental purpose of the term 'ariya savaka' is to contrast against a disciple who has not been exposed to the Buddha (Noble one's) teaching, the 'unlearned ordinary person'.
It's not to differentiate an unenlightened Buddhist disciple from an enlightened one, for which other terms already exist (stream entry, etc.).
MN 64 example
The Buddha said this:
Bhagavā etadavoca:
“Ānanda, take an unlearned ordinary person who has not seen the noble ones, and is neither skilled nor trained in the teaching of the noble ones. They’ve not seen good persons, and are neither skilled nor trained in the teaching of the good persons.
“Idhānanda, assutavā puthujjano ariyānaṁ adassāvī ariyadhammassa akovido ariyadhamme avinīto, sappurisānaṁ adassāvī sappurisadhammassa akovido sappurisadhamme avinīto
Their heart is overcome and mired in identity view,
sakkāyadiṭṭhipariyuṭṭhitena cetasā viharati sakkāyadiṭṭhiparetena;