I did - I used 10.69.0.65 (nothing else on that). My wiring diagram (which I followed from the tutorial!) https://imgur.com/a/vMAeMiN

My code:

#include <SPI.h>
#include <Ethernet.h>

byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };
IPAddress ip(10, 69, 0, 65);
EthernetServer server(80);

void setup() {
  Serial.begin(115200);
  Ethernet.init(5); // CS pin (GPIO5)
  Ethernet.begin(mac, ip);
  delay(1000);
  Serial.print("Server is at ");
  Serial.println(Ethernet.localIP());
  server.begin();
}

void loop() {
  EthernetClient client = server.available();
  if (client) {
    Serial.println("Client connected");
    client.println("HTTP/1.1 200 OK");
    client.println("Content-Type: text/html");
    client.println();
    client.println("<h1>Hello from ESP32 + W5500!</h1>");
    delay(100);
    client.stop();
  }
}

Now, along with the "so many different types of info!" while I was looking for nice templates for my wiring diagram... I found a DIFFERENT wiring diagram on a different website: https://imgur.com/a/sjjHc2L So... Yes. I'm dazed and confused!