I think "Classic" is moderate hard difficulty in D:OS? If so, they will introduce 2 easier settings and one harder one.
Overall a lot of encounters can be massively cheesed with sneaking in, taking high ground and then just machine gunning everything with bows and spells, while pushing off the melees that eventually manage to reach you. Shove is almost criminally powerful for a bonus action and so is Eldritch Blast with repelling invocation - it is pretty good at screwing archers and such. Then, it seems you can practically full rest wherever (which really needs to be fixed, because it's silly you can just full rest in a fortress filled with hostile goblins - let alone it ports you to camp), so you can just brute force things that way - initiating the combat with Shadowheart and other casters you may have at full spell slots makes things a cakewalk.
There are some places where you really don't want to go in guns blazing - like that phase spider cave, that is simply super deadly for level 3 party if you just waltz in the middle of all the phase spiders and ettercaps. You can, though, bait ettercaps separately from spiders it's much easier then - I found that you can do it by intentionally triggering webs, so they come for you.
Same goes for many goblin fights, vast majority of them - you can sneak in, separate party members to take positions on rooftops/ledges/walls and then trigger it, this makes things almost trivial, because by the time their melee fighters manage to get to you - you already pretty much killed most of them.
Last edited by Gaidax; 08/10/20 10:29 PM.