I use Fritz. It also has a database. Chessbase you cannot play and test with an engine. Matter of preferences though. By the way try YouTube lots of Chessbase tutorials I guess.
Chessbase Lessons

I'm still browsing articles and YouTube videos. I haven't found exactly what I'm looking for yet.
I like designing chess software. I understand Chessbase is considered a de facto standard by many master players. I would like to understand how Chessbase is used by master players when preparing for a match.
I'd also like to understand how Chessbase is used by master players for study and analysis. Trying to understand their workflow and some of the features they use.

https://www.youtube.com/watch?v=6IegDENuxU4&t=285s
Chessbase is for learning openings. In general, its for comparing what you are playing in the opening to everyone else's games. If you are playing a novelty that no one else is playing, its usually because you are wrong rather than you found something that no one else thought of. And usually it is up to you to figure out why that is.
The difference between master games that pretty much every chess website offers and chessbase is that chessbase has significantly more games, while most websites just offer GM games.

I think chessable has lots of options both paid and free https://www.chessable.com/dvoretskys-endgame-manual-5th-edition-revised-by-gm-karsten-muller/course/53370/ or for free this https://www.chessable.com/champions-chess-tour-2021/course/55884/

Thanks everyone. I am familiar with Chess GUIs, engine and DBs. I've used HIARCS, Arena and others.
I understand Fritz also includes DB functions. Chessbase includes enhanced DB functions (such as more in game searches such as material, positions, moves and more).
I understand that Mega DB and Big DB contain the same games... Mega just includes annotations. These databases can also be used with other chess DB software.
I also understand the differences and uses of PowerBooks (opening lines and not complete games).
I would like to understand how professional players use Chessbase software. What is the workflow they use? I can't image it's just for storing PGNs of games they've played or for replaying games.

Thanks everyone. I am familiar with Chess GUIs, engine and DBs. I've used HIARCS, Arena and others.
I understand Fritz also includes DB functions. Chessbase includes enhanced DB functions (such as more in game searches such as material, positions, moves and more).
I understand that Mega DB and Big DB contain the same games... Mega just includes annotations. These databases can also be used with other
I would like to understand how professional players use Chessbase software. What is the workflow they use?
If this is truly what you want, you are not going to find it from a free source. I suggest going over to coaches and hiring a GM to give you a lowdown on their workflow.
Coaches will work for you for one or two sessions.

@binomine oh, I didn't think this would be free. I was expecting to hire a coach/GM... a Chessbase power user. Maybe I didn't realize there was a different forum for that. Thanks very much.
The manual really helps me in Fritz. I did not try Chessbase. I am contented with Fritz GUI, database, and analysis. I heard you can't play against engine with Chessbase; but has more powerful opening and search functions.

Thanks everyone. I am familiar with Chess GUIs, engine and DBs. I've used HIARCS, Arena and others.
I understand Fritz also includes DB functions. Chessbase includes enhanced DB functions (such as more in game searches such as material, positions, moves and more).
I understand that Mega DB and Big DB contain the same games... Mega just includes annotations. These databases can also be used with other chess DB software.
I also understand the differences and uses of PowerBooks (opening lines and not complete games).
I would like to understand how professional players use Chessbase software. What is the workflow they use? I can't image it's just for storing PGNs of games they've played or for replaying games.
Use it to store your repertoire, analyze your games, master games, and you can basically store everything chess-related in there.

The Chessbase company in the past has recommended purchasing both Chessbase and Fritz, as they compliment each other. Advanced database features combined with a program for playing and analysis.
This series of videos could be useful
https://www.youtube.com/watch?v=XGk2BsNqsPI&ab_channel=ChessBaseIndia
Good day,
I'm interested in some lessons on how to best use Chessbase.