jsas
jsas
I am seeing this again in OSX desktop client v3.6.0. There is a single animated :clapping: (custom) emoticon.  Moving into chat windows without animated emoticons sees the cpu usage...
You bet. Same in 4.1.2. 
Same in Chrome underpinnings (68.0.3440.106). I guess this is related to (among a slew of others) https://bugs.chromium.org/p/chromium/issues/detail?id=671138&q=cpu%20animate%20gif&colspec=ID%20Pri%20M%20Stars%20ReleaseBlock%20Component%20Status%20Owner%20Summary%20OS%20Modified  Although the effects do seem amplified in the desktop client, if that...