My take on it: It doesn't really matter at that level tbh. I used to chase that level of connectivity until covid happened. I was working from home on am ADSL with 37mbps download, 10mbps upload. I didn't use much internet at home before 2023 so I always had the cheapest broadband plan. Then I started WFH and the same for my partner and I had a homelab. My ISP offered me 150mbps for just £3 more per month, and then I realised... I don't really need it? I was just fine with the same broadband plan from 2015. I changed my location a few times, taking my homelab with me, I moved cities and countries, I'm still using the same DDNS service and as long as my 80 and 443 ports are open, I can transfer anything at any time to and from my network. It's 2023 and I'm still using the cheapest plan my ISP offers, the same hardware since ~2018 and I'm just fine with that. I run k3s, a few docker services, network-wide adblocker, monitoring in grafana and many more etc. Everything works just fine.
Don't fall into the meme that you need IBM or HP server class hardware and 5Gbps fibre to run a homelab. I used to have IBM 3650x with +200Gb of RAM that I sold and bought 3x RPi4. I'm currently backing up 600Gib from my other servers, and it's completely fine that it will take a few days and nights ¯\(ツ)/¯ It's a hobby, I'm not paid for it, I'm not paid to maintain 99.999%, it's OK if it's not the best shit on /r/homelab
Don't fall into the meme that you need IBM or HP server class hardware and 5Gbps fibre to run a homelab. I used to have IBM 3650x with +200Gb of RAM that I sold and bought 3x RPi4. I'm currently backing up 600Gib from my other servers, and it's completely fine that it will take a few days and nights ¯\(ツ)/¯ It's a hobby, I'm not paid for it, I'm not paid to maintain 99.999%, it's OK if it's not the best shit on /r/homelab