Steps to reproduce:

1. Upgrade to Zabbix 5.0.x
2. See the changes of ZBXNEXT-5694 in Zabbix Frontend
3. See the Web Navigation became a lot more complicated
4. See that others feel the same: ZBX-17613 & ZBX-17664

Result & Explanation:
I really(!) like the new Monitoring -> Hosts view, but it has it downsides, as it feels unfinished in some use-cases.
I especially miss the old direct way to navigate to Monitoring -> Web. I find it rather complicated to navigate to it now. I think that it's especially annoying, that when I go from Monitoring -> Hosts to the Web monitoring, it's only possible to navigate there, with a pre-selected filter, from the host that linked me there.

So I now have the following work flow (as an example):

1. Go to Monitoring -> Hosts
2. Click the Web link on any host listed there
3. Switch to the Web monitoring view
4. Reset the filter, because it filters on the host that got me here
5. Now I filter for the Hosts Group that I'm really looking for.

This is very counter-intuitive.