So my wife has a 10 year old low end notbook. 500Gb of storage (HDD), 2GB of GDR3 RAM, and an intel Celeron Processor N2806. It originally came with Win 8, then she “upgraded” to win 10 and after that it was pretty much unusable. I am talking CPU and Ram about 80-90% in idle, opening a browser got everything down to a crawl. She mostly used it a storage and brwosing, watching youtube and occasionally to write. So I (also a Linux newbie) finally got the time to install a newbie friendly Os (Fedora) and it’s so much better! I am Talking 20%CPU usage and 50%(?) RAM in idle.
Try something like Linux Mint with the Xfce edition. Might be able to lower the RAM a bit more.
Even if they run only a window manager 2gb of RAM is just not enough for web nowadays.
Recently resurrected a 10-ish year old Lenovo Chromebook-like with an atom CPU and 4gb RAM, running nothing but qtile as a DE and it’s struggling with more than 5 tabs open.
Upgrade the RAM to at least 4gb, preferably 8 and the HDD to SSD.
Also, don’t bother with “lightweight” browsers, in my experience Firefox simply runs much faster.
Can confirm: after the 6th tab while shopping for upgrades everything went to slow motion.
Those Atom processors don’t have the power to be much more than an in-car navigation system with MP3 playback. Forget actual web surfing. You’re actually better off with a RasPi imho.