Help me choose a job offer as fresher.

I got 2 job offers both are in the associate web developer role. Both companies are service based 100-200 strength companies. I applied as a reactJS developer but this is what they told me about my role-

Company 1 told me that initially you will have to work on WordPress but later they might develop their product in which they will need reactJS Devs.

Company 2 told me that though the main stack will be JS and its libraries but i might have to learn other languages like PHP based upon the client requirements.

I don't want to be stuck somewhere where I am doing a completely different thing than what I have learnt (MERN stack).

Both companies took 3 rounds in core JS and reactJS.

Both companies are paying decently in the current job market. I am confused about which one to join or whether I should ditch both and look for more specific reactJS role jobs?