Your country of citizenship or birth plays zero role in terms of getting an H-1B visa. It neither helps nor hurts. And it's certainly not "pretty easy" to get an H-1B in any sense.
For example, right now, if you wanted to work in the U.S. the earliest date you could start working would be October 1, 2020. (That's because this year's lottery is already over, you'll have to try your shot with the April 2020 lottery, and you can only start working 6 months after that at the earliest.)
There might be racial prejudices in terms of getting a job, where being a European helps, but even that's extremely unlikely in Silicon Valley. Most U.S. tech companies are concentrated in progressive (Democratic party voting) regions -- and most people in these regions are emphatically not racists, and many often go the extra mile and make a conscious effort to deal with any subconscious racism in their minds. So don't expect being European or white to help that much.
The government certainly doesn't care what country you're from, and what your skin color is, when it comes to approving H-1Bs -- at least there hasn't been any evidence to the contrary. The vast majority of H-1B visas go to people from India and China, of which the majority go to people from India.
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Also regarding L-1 visas: Getting a job at a FAANG or a large multi-national company with offices in the U.S. and Europe/elsewhere, and that's willing to relocate you is not easy. If you're a valuable contributing member of your team, I doubt your manager would be jumping with job at the idea of you being transferred to the US.
Getting an L-1 visa requires not just a degree and 1 year of work experience with the company, it also requires "specialized knowledge". Lookup the definition. There have been denials on the basis of this "specialized knowledge" requirement.
Furthermore, it's unpleasant to be in the U.S. on the L-1 because you have no way to change jobs (unlike the H-1B) and lose legal status as soon as you're fired. I had a family member who after many years in the US on the L-1A (managerial) visa, had to suddenly pack up and leave the US. The company held off on applying for an EB-1 green card until the L-1A was nearing its 7-year limit, and then for unrelated financial reasons this company shut down overnight. Everyone was laid off, including US staff.
So you need a company that's nice enough to apply for your H-1B every year (knowing that it'll give you the freedom to change jobs as you wish), and one that's willing to relocate (at a loss to the team in your original country).