Justification of irrelevant work in interviews

Currently at Applied Materials since July 2020.Was interview for Java position. The work advertised in job description is totally different. No cloud or AWS/GCP.Less Java projects and work. Took some PHP projects to look good and team player. Sometimes do some automation scripts in Python .The team and manager is expecting me to become Pro in PHP. Working in PHP will make me lost touch with Java.for challenging work,I suggested to introduce new languages such as Kotlin/Go,got rejected by team member (due to love for Some old language) straightforward without listening the idea.Looked for internal team changes.Mostly positions are C/C++/C#.I am really worried/stressed if i stay longer in Company will cause huge damage to my career. I am not be able to move to Java again or some good cool technologies. Need some suggestions to justify irrelevant work for interviews TC 120 YOE 5