Hi @Mkochanik, welcome to the community!
Every plant pod has its “Lasts up to date” that marks for how long usually the plant pod lasts for and can be enjoyed for. You can find all kinds of plant-related information on the website under “plant care” or on the app.
It is natural that that lettuce plant pod becomes depleted in time. Transplanting is not always a best option, e.g. for short living annuals as green lettuce, to produce more yield. Though you may end up with good results with basil, just trim it back constantly, this will delay flowering and flavor becoming bitter.