I may have misunderstood what you meant by this but Joplin Cloud does not have a web interface through which you can directly create and edit notes. Joplin Cloud is used to synchronise the desktop and mobile clients. You need to use the clients to actually create and manage your notes.
I'm a great fan of the markdown editor, too - but it must be noted that features like changing font size and colours are not available in the rich text editor (as far as I'm aware). HTML/CSS tags can't really be a substitute for daily usage IMO.
Making these features a 'native experience' would probably attract a lot of former Evernote or OneNote users, but would mean a departure from Joplin's 'markdown first' approach, which is part of its charm.
Thank you all for your replies
I have already downloaded and installed Joplin on my computer
I also synced it with Ondrive
I also managed to change the font formatting
To change the font color is more complicated than with Evernot
There is no possibility to go back in case of error
Joplin still has a long way to go on the layout
Evernote under the hood uses custom XML to format notes, so yes, it's way more powerful than Markdown, especially regarding font size/colour formatting and such. Joplin can use HTML tags, but they need to be input manually, so it's not really very user-friendly, especially on mobile. It's also completely inaccessible for "normal" computer users, as they've got no idea what HTML even is.
What do you mean by that? Joplin has note history that's set to 90 days by default, so you can easily revert to multiple previous versions of the same note (see https://joplinapp.org/note_history).