Capital Gains on Schedule D and Form 8949 Questions

Hello, we inherited a brokerage account in late 2019.  In 2020, the brokerage firm sold some stocks that resulted in close to 90 transactions.  The 1099B (subsitute form that lists individual sale transaction lines?  It does not look like the 1099B form that I found on the IRS web site) from the brokerage firm, Merrill Edge, showed these transactions in two categories with these headings - "short term capital gains and losses, 1099-B line 2, box 6 net proceeds, covered transactions, cost basis reported to IRS, form 8949, part I, (A)"; and "long term capital gains and losses, 1099-B line 2, box 6 net proceeds, covered transactions, cost basis reported to IRS, form 8949, part II, (D)".  The 1099-B shows line item amounts under the columns - proceeds (1d), cost basis (1e), and "gain or loss"  There are no adjustments under column (1f) and (1g), these columns show zero dollars.  The Schedule D instructions appear to say if the categories are box (A) and (D), and there are no adjustments, that I can just put the short term gain/loss totals as one line on Schedule D line (1a) for short term gains/losses, and long term gain/loss totals as one line on Schedule D line (8a) for long term capital gains/losses.  And I do not need to fill out Form 8949.  Is it correct?  And if I don't need to fill out Form 8949, do I need to attach a copy of the 1099B from the brokerage firm with the tax return for mailing?  I am using TurboTax to do the return, but I am goint to print the return to mail.  I ask a couple of local CPA firms, and they told me I would still to fill out Form 8949.  Please advise.  Thank you.