Not the other poster, but I can answer this question! Lancer is very much a love letter to mecha anime/stories, while also having something very specific it wants to say using the tools of the genre.
Lancer is self-described as a "mud and lasers" mecha game, meaning it's both very high tech, but also really concerned with grit and detail. Mecha can get really cool super-science abilities, like in later Gundam shows. But battles in Lancer are absolutely snarls of metal and missiles, like earlier Gundam. Tactical play is very important in a Lancer combat.
Where Lancer is most distinct is in what it's about. Lancer is a setting with expansive space travel, creating settlements all over the galaxy and stuff. Places close to the seat of government are basically utopias with easy access to super science tech that can build anything you might need super fast, and everyone is comfortable and living peacefully under a government I've forgotten the name of 😅.
But when you get outside of the inner worlds and lose access to the plenty provided by that government, things get a lot more precarious. Petty squabbles blow up into interplanetary wars, need turns into piracy, etc. This is where influences like Dune and Warhammer come into play. Lancer is about precarity in a world of abundance. It's interesting stuff!
Lancer basically loves mecha shows, and especially loves tactical mecha combat. But it's also very much trying to be it's own show and not emulate an existing one. Lancer is great if you play it straight on, but it's terrible if you're looking for a game you can do Gundam or Macross or Code Geass in or whatever.