Hi, I was a bit confused on this and today I got the needed clarification (see below)
From ARRL News:
The Federal Communications Commission (FCC) staff has clarified in response to an ARRL request that the new $35 application fee will not apply to most license modifications, including those to upgrade an Amateur Radio Licensee’s operator class and changes to club station trustees. The FCC staff explained that the new fees will apply only to applications for a new license, renewal, rule waiver, or a new vanity call sign. As previously announced, the new fees take effect on April 19, 2022.
“We are pleased that the FCC will not charge licensees the FCC application fee for license upgrade applications,” said ARRL Volunteer Examiner Coordinator (VEC) Manager Maria Somma, AB1FM. “While applicants for a new license will need to pay the $35 FCC application fee, there will be no FCC charge for future upgrades and administrative updates such as a change of mailing or email address. Most current licensees therefore will not be charged the new FCC application fee until they renew their license or apply for a new vanity call sign.”
ARRL previously reported that the new $35 application fee for Amateur Radio licenses will become effective on April 19, 2022. Further information and instructions about the FCC Application Fee are available from the ARRL VEC.