That's not good, I actively try to avoid realtek cards since they are unreliable in linux. I have an asus board with an Intel nic but I haven't had these issues.
Unless you have use case for that much horsepower I would suggest, like others here, buy a mini PC as a start and if you need more down the line buy a second one. They are cheap, fairly quiet and don't use much power.
That's not why it's repeated a 1000 times, it's so when you actually do want to buy something in that category you're more likely to buy theirs because it's familiar.
@tomten
@lemmy.world