Yes and no.
On the one hand, Mojave is now at 10.14.4 which in the past was considered the sweet spot for upgrading your OS. The general rule of thumb was never to upgrade before the .2 or .3 release at which point most bugs and incompatibilities had been ironed out. However, with Mojave Apple has upped the ante and started introducing new fatal flaws with .3 and .4 release that affected some users without actually fixing previously reported bugs.
On the other hand you might not even be affected by these bugs. It depends on your hardware, your peripherals, the software you are running, etc. You might actually benefit from an update without losing any functionality or experiencing any issues. As
@Fishrrman said: there's only one way to find out.