How much data will you use ? The cellphone ( most ) will put low data cap on hotspot  data on  your “unlimited “ phone The dedicated hotspot will cost more but give you multiple WiFi  connections tv laptop etc.” Verizon “ works well for you now but are you traveling ?  How’s sprint/  t mobile? For example ….  FMCA. Offers members  50 bucks a month for truly unlimited hotspot ! lease the hotsopt for 40 bucks upfront . 
calix institute  for and annual 400$ donation will give you a truly unlimited-free  hotspot (that works out to 33 bucks a month). After you buy the hotspot .
there are many more solutions. How much do you need and want to spend ?
Btw we never used campground WiFi in the last 5 years full time . We have att on the phone 40g ea hotspot. And an old att hotspot Mobley plan long gone  - 23 bucks .. Verizon ( no longer avail ) 65 a month unlimited hotspot. We no longer use satellite for tv and stream youtube tv with others and my DW zoom business calls for well over 200 -300g  a month.