He briefly explains the modifiers in 2.8.
Cool uses for several modifers.
Used the sculpting methods in blender 2.93 listed in the sculpting page to add in texture details on the glass and base. Free Brushes found online.
You can purchase this object at blendkit.com, or cgtrader.
This person has some great ideas on how to use constraints to keep an object to a path, rig a piston, rig a jet exhaust, He uses the snap to curser shift s keyboard shortcut. He has some parts which don't constrain properly, and he shows you how to fix those issues.
This person from decoded has all the basics of making a room. He explains how get the camera settings from a thirdparty plugin, and how to make the room, furniture, and lighting. If you do this tutorial you should be able to make a very nice room.
If you find this site helpful, consider my Patreon Page.
I made this scene for the cgboost world in a bottle challenge. This is the final entry, the one below was rejected because it was a jar not a bottle.
Blender is a powerful program and if you don't have a fast enough rig, you won't be able to do the things you really want to. Forget about simulations, or large scenes.
Get 32gigs of ram or more, (ddr5 ram just dropped in price), Get a VideoCard with 12gb of vram or more, get a large M.2 drive, and an 8 to 16core Processor.