I realize you really needed a new router, (was just teasing you), and if you have your own modem, you likely need a new one of those, and if you do, I can help suggest good ones for you. If your modem is from ISP, you may at least need a new upgrade.
A new router opens you up for better video streaming on TV, tablets and phones, etc.. All my mobile devices are only on my 5G band; in fact, they are told to "forget" the 2.4G signal so they don't get on it at all. I have all kinds of video-streaming gadgets, incl a media player, a Roku, a Chromecast and Amazon Fire TV sticks. I just now finished installing my third Fire TV. So, I wanted the newest model with (Alexa) voice remote. (It's only money, ya know.) Once I had it installed, I just told it via voice to play station XXXX on TuneIn, and it's been going for a while now. I also have an app called Kodi installed on all the Fire TVs that makes them a wizz-bang media player for music, videos and photos. I can stream anything with it from my home server NAS. The oldest Fire TV stick that I had to remove for new one will now become our traveling companion; it's now in the gadget bag with an older Chromecast.