I really wish there was a NSFW distinction between plain inappropriate, porn, and NSFL content. I don’t want to hide NSFW (legitimately “not safe for work”) content, but don’t want to see porn or death. Guess it’s either setup filters, or just keep to subscribed or local content if your server disallows porn.
NSFW images being blurred by default helps with that, though that might be browsing platform specific. It’s a little inconvenient but it does help avoid getting gore unexpectedly shoved in your face since you can usually judge by the community or post title what it might be.
As far as what I’ve seen blurring NSFW content is a default setting, as is hiding NSFW content. What’s annoying is sometimes content that’s marked NSFW doesn’t necessarily mean porn or nudity, but that it’s just not appropriate for work due to fowl language, or rude humor, or discussion of sensitive topics, etc. so if you hide all NSFW you miss some content. I just don’t want my feed filled with porn. I can stay in subscribed and local, since my instance bans porn, but you run out of stuff sometimes doom scrolling lol. I know that last but is a personal issue.