What's your concern with Galileo? Many experts consider it to be the best GNSS currently available:[1]

> The US constellation isn’t as accurate as the newer networks, said Roberts, the Sydney-based professor. “It used to be GPS was out in front,” he said. Now, though, the EU’s Galileo is in the lead, with China’s BeiDou close behind, he said.

[1] https://www.bloomberg.com/news/articles/2023-09-20/russia-s-...