iPad keyboard not showing up when on in-document linked websites in Google Docs and Google Slides apps

I have got an iPad 6th gen which is updated to iPadOS 16.2. I sometimes use Google Docs to save some links (that open in Google Docs itself, I've set it to be like that). For example, I saved a link to archive.org , which I tried to access (it worked as usual), but when I wanted to make a search, the keyboard wouldn't show up. The input field shows a blue line (see circled part on screenshot below) as usual to show where I'm at when typing but not the keyboard! I need to copy text from Quick Notes (easiest way I found) and then paste it in the search bar. Here is a picture of it happening: I browsed answers on this website and on the internet for this kind of problem but I haven't found anything working for me. It happened to me this morning (March 8th, 2023) for the first time. How do you fix this problem? Thanks to any help that could be provided.