I have, and yes, they do come right up to you if they think you're going to feed 'em. I've encountered deer at the hardware store, which involves people driving monster trucks with trailers, forklifts loading and unloading wood, and so on, and the deer don't even care.
Unless you can install LineageOS on an S25 Ultra, your best bet is to trade for a Pixel and immediately flash with grapheneos. Samsung is just as invasive with all their oem apps.
If you setup a Tailscale and an NGINX reverse proxy or a port forward on a VPS, you can definitely have people connect via the VPS IP to reach your home server.
Let me go out on a limb and rec a cheap mini computer with 2 mini gigabit (or more) ethernets, and either pfsense or opnsense. Those two run on anything that has an x86_64 cpu and easily update. Not any harder to learn to setup than mikrotik, and has lots more capability.
I have, and yes, they do come right up to you if they think you're going to feed 'em. I've encountered deer at the hardware store, which involves people driving monster trucks with trailers, forklifts loading and unloading wood, and so on, and the deer don't even care.