Not necessarily. There are exceptions. Some have lived long, healthy lives, and still lay a few eggs into their 4th and 5th year.
However, it generally best to understand that these strains were developed for the egg industry, where layers and "all in and all out" every 2 years on average, so the breeding is pushed to work within that time table. These birds are often most productive their first year or two and then? Some burn out, others can develop ovarian and reproductive issues.
No one can predict with absolute accuracy the future of your bird. But, it good to have the knowledge and perspective.
edit: They are not a "breed" at all. They are hybrids. Here's to hoping your pullet has a long happy life.
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