If you run steam on wine you lose the ability to run native Linux games and all the many proton patches that are not present in wine. Most of the games that run seamlessly on proton don't run so easy on wine. In proton each game gets their own winepath, own configs -many which are incompatible to each other - etc.
So.... Run native steam and run windows only games using proton or proton-ge in native steam .
It's not on bookmarks. Is on collections(a different thing) that are public, shareable and technically hosted by Google. This whole thing has been overblown by not fact checking.