What then are the physics underlying FTL travel, shields, and null field projectors, why do people use particle beams rather than lasers (which are not deflected by magnetic fields), and why (contrary to how things work in real life) is grapeshot more effective against hard targets than unitary penetrators? If you want a rationale for space navies, you first need to posit social and technological situations rather removed from real life, and the nature of that removal usually involves making up new laws of physics, like those which are needed to allow proper FTL travel, sensors, etc.
As for jamming in Star Wars, a small civilian ship can jam a flight of military fighters (IV), a large ship can block all communications from a smaller ship in running combat (IV), one speeder bike can jam multiple bikes of the same model (VI), and a sensor-jamming trap (probably using the second Death Star equipment) can prevent an entire fleet from recognizing that a planetoid-scale shield is up while being subtle enough to not blind other sensors or communications. This sort of thing (like most technology in Star Wars) mostly serves to justify plot points to steer the story in the desired direction. That the movies don't make a huge deal about the technology invoked does not mean that it isn't there. And since the physics underlying it are just as imaginary as those underlying things in The Lost Fleet, it's an exercise in sophistry to make a distinction on realistic physics.
I figured you'd like Honor Harrington. If you want to check out something spacey that mostly follows the laws of physics (in the sense that it avoids what modern physics says is impossible), you might check out Orion's Arm
. It's a world building project that contains some stories