Standard treatment is chemo forever. Multimodal treatment is a careful, integration of advanced treatments, like optional chemistry(s) and surgery(s) for complete local cancer removals where possible, and more effective use of nicer
metronomic (immuno)chemo closer in to surgery. With some luck, you'll do far better. Such advanced options require exploration, preparation and serious self advocacy.
We have been able to knock off mets in different locations, step by step, far beyond "standard" results, with a high quality of life, for more reasonable costs.
Most people let their doctors and insurers override them and fly more blinded, but I would make sure I got, at least, CA199, AFP, LDH, ESR, hsCRP, and maybe CA125 included in my bloodwork
, at least once right now before any treatment. You'll be better positioned/prepared to evaluate, discuss (in many places, like here) and monitor the situation long term, beyond standard bloodwork, like CEA + CBC with differentials + CMP. This is an important moment in your story.