Internet Speed Tests for 6 Months Contrasts Stability of Fibre vs Fixed LTE
What shows out clearly here is the volatility of the LTE speed tests on the left side of the graph. Some great peak speeds and usually quite punchy hitting around 60+ Mbps but was not consistent. LTE's latency (it's "reaction speed" or how quickly it responds back from the remote server) is around 400-500% slower than fibre.
The fibre shows rock solid and consistent results on the right-hand side. This was on Afrihost's lowest tier service for home use.