Is it easy to tell if a broker will provide access to all main ETFs?

I'm in my quest to choose my first broker. My main goal is long term ETF. However, I'm still confused and not decided which ETFs to go for, EU vs world, and then all the different 4-letter codes I see mentioned here. Can I assume that any top broker (Trading213, XTB, Lightyear, IBKR, etc) will have access to all of these, or do I need to do a deep search before looking into the other factors? submitted by /u/Frigorr [link] [comments]