Will chunk/bundle optimisations help on my website if FID is already less?

According to core web vitals there are only 3 core vitals for measuring the user experience of any website LCP(Largest contentful paint), FID(First input delay) and CLS(Cumulative Layout shift). According to Pagespeedinsights or CRUX dashboard, FID of my website is in good limits i.e 90% of users have an input delay of less than 100 ms

Will there be any benefit if I do the chunk optimisations(splitting, lazy loading) on the user experience of people landing on my website?

I understand that it will effect TBT(Total Blocking Time), TTI(Time to interactive) but anyways it doesn't matter if my FID is ver less. is my understanding correct?