No it isn’t normal and is behind developmentally.
OP, easy for someone else to say, but monitor it but don’t worry.
My son is 8. Had next to no words at that age. I got myself in quite an anxious state googling, completely obsessed. We got a referral for SALT when he was 18 months (I think more to appease me than because anything could be ‘done’ to help, as simply to young). All they care about at this age is shared joint attention and responsiveness to own name. Providing they can do both of those things they’ll be quite happy. If not responding to own name they may refer to audiology for hearing test. Also note they do not tend to Juno straight to grommets under the NHS (due to cost). They have a wait and watch approach, push hearing aids in the first instance. You have to push back on that hard.
We stayed ‘in the system’ and I had to fight and advocate hard for therapy. It wasn’t great under NHS. They do episodes of care. Basically the more capable you are of teaching your child, you get less sessions. They teach you something, you go home and repeatedly teach the child until they have mastered. Back to the next set for the next ‘lesson’ - it’s diabolical actually.
Sadly my son was nursery age during Covid so carers wore mask so he couldn’t ‘see’ speech and then they wanted to do zoom sessions with him. He was more interested in the laptop as he hadn’t been on one before. He also couldn’t hear the soft sounds like ‘s’ they were trying to have him repeat. It was dreadful. They didn’t return to in person for a long long time. As mentioned above, episodes of care were short I assume to get through the backlog.
We ended up going by private and having fortnightly sessions with an amazing therapist who went into his nursery and then school to work with the carers and then the TA’s.
He is 8 now. He will always find it harder to formulate his words than other children (speech, which is the sounds of a word), but his language (vocab) is now considered as on track.
He still has his therapist go in monthly to school to work with the TA’s. We also got him under a specialist NHS programme which was an intensive 6 month programme which is excellent but pretty brutal (drilling him 1000 words per days on repeat). If you don’t do it and they can tell you get kicked off. Only 2 therapists in the county are qualified for it so it’s hard to get in under NHS.
My point is - monitor. Advocate for him when the time is right but he’s really too little right now for any intervention to work.
Point at items and say the word and when he tries them just model them back to him. Keep sentences shorter whilst he is establishing his vocab. Then when the words come he will understand them.