Monero's stealth addressing works like this:
You start with a destination wallet address, which is a pair of public keys
A, B
which have corresponding private keysa, b
known only to the recipient.A Diffie-Hellman exchange is performed, resulting in a shared secret which can be transformed to produce a private key
s
.A public key
S
corresponding to the private keys
is determined.A homomorphic encryption scheme is used to combine
S
withB
. Homomorphic means that the private key corresponding to the public keyS+B
can be determined only by someone (i.e. the recipient) that knowss
andb
.S+B
is published as the one-time output public key, and only the recipient (and not the sender or anyone else) can determine the private key for this one-time output. This means the sender can't spend the newly created output themselves.
Steps 1-3 can be done using any asymmetric encryption scheme, such as RSA.
To achieve step 4, you need an asymmetric encryption scheme which is homomorphic. I'm not an expert, but it's possible that the RSA unpadded scheme may work for this: https://en.wikipedia.org/wiki/Homomorphic_encryption#Unpadded_RSA
I don't know if any PQC asymmetric encryption schemes exist which support homomorphic encryption.