Yes. But it's not for everyone, especially not for a lot of engineers.
Many of these buyers feel more comfortable meeting you in-person, so going to trade shows, writing articles for niche trade publications, and sometimes doing site visits are all very helpful. So is cold calling.
Sales cycles are often slow. You have to get used to customers taking months to decide, having lots of meetings with different stakeholders, and to get good at telling the difference between those who need a lot of meetings but will likely close versus those who will never do anything. It's a very different game than selling subs online, which I know little about.
The product does need to be decent but I disagree with others that it has to be amazing. Most enterprise software is horrible. They will be delighted if you actually solve their problems (rather than the problems horizontally-oriented software vendors want their customers to have), even if it has some rough edges, as long as you're very customer-focused, responsive, and available.
But it also tends to be durable revenue, because you get tightly integrated into their operations if you do it right.