FIPS is what happens when idiots get promoted and start reading too much LinkedIn CISO slop.
If a customer demands FIPS compliance charge them out the ass for it. Its not inherently secure, it requires in some cases massive re-engineering of product and toolchains, and mostly seems to be an ask from clueless deep pocketed Fortune 500 companies looking to minimize liability claims after a breach by being able to point at their FIPS compliance.