In those statistical roundups homicide is treated as a proxy for crime in general, so the best we can rigorously say is that homicide rates have decreased - which is, obviously, great. Researchers treat homicide as a proxy because they know not all crimes are reported.
Anecdotally, living in [big city] between 2014 and 2021 my street-parked car was broken into ~10 times, and stolen once (though I got it back). I never reported the break-ins, because [city PD] doesn't care. In [current suburb] a drive by shooting at the other end of our block received no police response at all, and won't be in the crime stats.
Are those types of crimes increasing? I don't know! I'd had my car broken into before 2014, and I witnessed (fortunately only aurally - I was just around the corner) a drive-by in the nineties. But... That's the point: no one knows! These incidents aren't captured in the statistics.
Personally, I think the proxies are broadly accurate, and crime in general is lower, and I shouldn't trust my anecdotal experiences. However, I think the general lack of trust in the quality of American police-work (much of it for good reason, sadly) biases most people towards trusting anecdotal experience and media-driven narratives.
I am more skeptical of homicide rate stats than you are, given the garbage data I see for crime in general, but even I am willing to admit they're much more robust than the rest.
Also I believe my eyes and when I see crimes happening in my neighborhood I don't rush to "the stats" to ask them what I saw.
Stats only get worse from there: at neutral they contain no information, at worst they are dis-info.
How else do you condense down myriad and often conflicting datapoints of this complex human existence in order to get trends you can make decisions on?
Longer answer: this is a fundamental problem across many domains. I don't think anyone has solved it.
I think of a story of Bezos being told by his Amazon execs that customer support wait times were meeting X service levels. In the meeting room with his execs, Bezos dials up customer service, gets some wait time of >>>X and makes the point that service levels are not up to his expectations.
I don't think that story is a great analogy for running society but is interesting nonetheless.