As one person mentioned already, you can paste images into the text editor on modern pages and we’ll upload the image for you.
Is this strictly asking for that capability in lists with multi line text box (MLTB)?
An error occurred while saving the commentjasonf commented
Yes, for lists with MLTB! SP is the only system left in the world that doesn't support CTRL-V to add an image. It seems to get added, but as soon as the record is saved, it disappears.
And even worse - at least with the old MLTB editor, you could add an image from your PC and SP would upload it for you. Now it only accepts an address to an image that's been already uploaded. This is not an acceptable user experience.