As I mentioned, bandwidth is proportional to available access/RF bandwidth (Shannon's Theorem). Current available band in US (CBRS) is limited to 20MHz per user/enterprise 9I think for enterprise you can go higher, but its still limited). FCC hasn't updated the standards (CBRS) for 5G. Germany is way ahead in p5G (trying to keep the leadership in Industry 4.0/Industrie 4.0, I am not sure what's the available band there. Search for Hannover Trade fairs private 5G where its deployed for Edge computing and secure industrial app ecosystem).
In terms of bandwidth, p5G will not provide any advantage over WiFi esp WiFi6.
Its the enterprise level ecosystem where its going to be huge differentiator.
Regarding your point of tower level handover, that will not be an issue. It should not be in pLTE (p4G) too. But I can understand in earlier versions, the systems might be feature limited.
Are you sure it was local 4G service line p4G or Femto service where operators provide small device to cover either indoor no-RF spots or to move the traffic load from network to public internet/network.