Time for a new computer? Or is Chrome doing the bugginess?

[UTUSN]

It's a 2021. I use it barely for small internet stuff - mostly DU and email and a very few news websites. For YouTube, use Roku stick.

In the past month, started getting messages, "Low disk space" and something about freeing up storage space. Took it seriously at first and clicked through deleting temporary files and such. Have kept on getting those messages. In the past few days, have had to sign in each time for Google mail. Never had to do that. Now if I leave the site without signing-out have to sign in again AND with a "verification" thing going to the phone. Today had to sign into DU.

New computer? Won't switch from Chrome, fyi.

Having to be gone for awhile if not answering here.