Chrome on Windows been freezing for me regardless if i'm viewing the game like this https://www.pente.org/gameServer/viewLiveGame?mobile&g=50000000738544 and clicking the back/forward buttons, or if i'm in the database placing moves or clicking back/forward. I have to refresh browser to fix
Oh yea ongoing games are freezing mad quick, like just now it was as soon as i placed a stone. And 3x in a row after refresh page did same thing. Dunno about arrow keys can try tomorrow. I think there was a Chrome update in last few days, not sure though
Checked on Chrome, everything is OK. Version: 152.0.7977.83 (official) (64 bit) Upgraded to 153.0.8010.37 (official), still no freeze. Loaded the link with a game, travelled back and forth several times using buttons. No effects. Maybe it's something local to your PC? Try it in a different browser.
I haven't experienced issues on other sites (yet), but could be my graphics driver or something, not sure. I tried Edge as well and it did last a while (30? 60? min) before it also started freezing on me. To where a refresh (forgot to try ctrl-shift-R) was freezing quickly from that point forward, but then i could fully close the browser and re-open it and it was OK again. shrug.