Block patterns are the only positive thing in block editor in WordPress 5.5. New block editor has gone down hill in term of usabilty and intuitive use, with many useful features gone or made worse, and it is easily the worst edition of block editor since it was first added into core. And for me, editor performance is clearly worse then with WordPress 5.4.

Each previous major WordPress version, improved on block editor, and all that is gone with new one.

Overall great WordPress 5.5 now includes the worst version of block editor to date.